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8012107440 = 243354386263
BaseRepresentation
bin1110111011000111…
…10000111010110000
3202200101012020012000
413131203300322300
5112402044414230
63403011134000
7402355534551
oct73543607260
922611166160
108012107440
1134416979a7
1216772a4300
139a8bc1c9c
1456013a328
1531d5dcb60
hex1dd8f0eb0

8012107440 has 160 divisors (see below), whose sum is σ = 28239383040. Its totient is φ = 2086850304.

The previous prime is 8012107427. The next prime is 8012107451. The reversal of 8012107440 is 447012108.

8012107440 is a `hidden beast` number, since 8 + 0 + 1 + 210 + 7 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49749 + ... + 136011.

It is an arithmetic number, because the mean of its divisors is an integer number (176496144).

Almost surely, 28012107440 is an apocalyptic number.

8012107440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8012107440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14119691520).

8012107440 is an abundant number, since it is smaller than the sum of its proper divisors (20227275600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8012107440 is a wasteful number, since it uses less digits than its factorization.

8012107440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86328 (or 86316 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 8012107440 is about 89510.3761582980. The cubic root of 8012107440 is about 2001.0084447674.

Adding to 8012107440 its reverse (447012108), we get a palindrome (8459119548).

The spelling of 8012107440 in words is "eight billion, twelve million, one hundred seven thousand, four hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 43 45 48 54 60 72 80 86 90 108 120 129 135 144 172 180 215 216 240 258 270 344 360 387 430 432 516 540 645 688 720 774 860 1032 1080 1161 1290 1548 1720 1935 2064 2160 2322 2580 3096 3440 3870 4644 5160 5805 6192 7740 9288 10320 11610 15480 18576 23220 30960 46440 86263 92880 172526 258789 345052 431315 517578 690104 776367 862630 1035156 1293945 1380208 1552734 1725260 2070312 2329101 2587890 3105468 3450520 3709309 3881835 4140624 4658202 5175780 6210936 6901040 7418618 7763670 9316404 10351560 11127927 11645505 12421872 14837236 15527340 18546545 18632808 20703120 22255854 23291010 29674472 31054680 33383781 37093090 37265616 44511708 46582020 55639635 59348944 62109360 66767562 74186180 89023416 93164040 100151343 111279270 133535124 148372360 166918905 178046832 186328080 200302686 222558540 267070248 296744720 333837810 400605372 445117080 500756715 534140496 667675620 801210744 890234160 1001513430 1335351240 1602421488 2003026860 2670702480 4006053720 8012107440