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145964808 = 233311232671
BaseRepresentation
bin10001011001100…
…11111100001000
3101011122210002000
420230303330020
5244331333213
622252311000
73421452243
oct1054637410
9334583060
10145964808
1175436580
1240a72460
1324318312
141555825a
15cc33c73
hex8b33f08

145964808 has 128 divisors (see below), whose sum is σ = 461721600. Its totient is φ = 42292800.

The previous prime is 145964807. The next prime is 145964827. The reversal of 145964808 is 808469541.

145964808 is a `hidden beast` number, since 14 + 596 + 48 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (145964807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53313 + ... + 55983.

It is an arithmetic number, because the mean of its divisors is an integer number (3607200).

Almost surely, 2145964808 is an apocalyptic number.

145964808 is a gapful number since it is divisible by the number (18) 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 145964808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230860800).

145964808 is an abundant number, since it is smaller than the sum of its proper divisors (315756792).

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

145964808 is a wasteful number, since it uses less digits than its factorization.

145964808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720 (or 2710 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 145964808 is about 12081.5896305081. The cubic root of 145964808 is about 526.5214315835.

The spelling of 145964808 in words is "one hundred forty-five million, nine hundred sixty-four thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 23 24 27 33 36 44 46 54 66 69 72 88 92 99 108 132 138 184 198 207 216 253 264 276 297 396 414 506 552 594 621 759 792 828 1012 1188 1242 1518 1656 2024 2277 2376 2484 2671 3036 4554 4968 5342 6072 6831 8013 9108 10684 13662 16026 18216 21368 24039 27324 29381 32052 48078 54648 58762 61433 64104 72117 88143 96156 117524 122866 144234 176286 184299 192312 235048 245732 264429 288468 352572 368598 491464 528858 552897 576936 675763 705144 737196 793287 1057716 1105794 1351526 1474392 1586574 1658691 2027289 2115432 2211588 2703052 3173148 3317382 4054578 4423176 5406104 6081867 6346296 6634764 8109156 12163734 13269528 16218312 18245601 24327468 36491202 48654936 72982404 145964808