[go: up one dir, main page]

Search a number
-
+
120241680 = 243513172267
BaseRepresentation
bin1110010101010…
…11111000010000
322101020220120120
413022223320100
5221240213210
615533110240
72660015556
oct712537020
9271226516
10120241680
1161967399
1234328380
131bbacc30
1411d7dbd6
15a852270
hex72abe10

120241680 has 160 divisors (see below), whose sum is σ = 425222784. Its totient is φ = 27844608.

The previous prime is 120241679. The next prime is 120241703. The reversal of 120241680 is 86142021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 120241680.

It is an unprimeable number.

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, 51907 + ... + 54173.

Almost surely, 2120241680 is an apocalyptic number.

120241680 is a gapful number since it is divisible by the number (10) 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 120241680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212611392).

120241680 is an abundant number, since it is smaller than the sum of its proper divisors (304981104).

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

120241680 is a wasteful number, since it uses less digits than its factorization.

120241680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2307 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 120241680 is about 10965.4767338224. The cubic root of 120241680 is about 493.5733228903.

The spelling of 120241680 in words is "one hundred twenty million, two hundred forty-one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 17 20 24 26 30 34 39 40 48 51 52 60 65 68 78 80 85 102 104 120 130 136 156 170 195 204 208 221 240 255 260 272 312 340 390 408 442 510 520 624 663 680 780 816 884 1020 1040 1105 1326 1360 1560 1768 2040 2210 2267 2652 3120 3315 3536 4080 4420 4534 5304 6630 6801 8840 9068 10608 11335 13260 13602 17680 18136 22670 26520 27204 29471 34005 36272 38539 45340 53040 54408 58942 68010 77078 88413 90680 108816 115617 117884 136020 147355 154156 176826 181360 192695 231234 235768 272040 294710 308312 353652 385390 442065 462468 471536 501007 544080 578085 589420 616624 707304 770780 884130 924936 1002014 1156170 1178840 1414608 1503021 1541560 1768260 1849872 2004028 2312340 2357680 2505035 3006042 3083120 3536520 4008056 4624680 5010070 6012084 7073040 7515105 8016112 9249360 10020140 12024168 15030210 20040280 24048336 30060420 40080560 60120840 120241680