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157527966920 = 23523316838087
BaseRepresentation
bin1001001010110101100…
…1100000010011001000
3120001121101122212010012
42102231121200103020
510040104124420140
6200211203011052
714244455424452
oct2225531402310
9501541585105
10157527966920
1160897481115
1226643969a88
1311b1607cc5c
1478a54a32d2
15416e938265
hex24ad6604c8

157527966920 has 128 divisors (see below), whose sum is σ = 382385111040. Its totient is φ = 58234725120.

The previous prime is 157527966899. The next prime is 157527966961. The reversal of 157527966920 is 29669725751.

It is a happy number.

It is a super-2 number, since 2×1575279669202 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157527966920.

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, 19475117 + ... + 19483203.

It is an arithmetic number, because the mean of its divisors is an integer number (2987383680).

Almost surely, 2157527966920 is an apocalyptic number.

157527966920 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 157527966920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191192555520).

157527966920 is an abundant number, since it is smaller than the sum of its proper divisors (224857144120).

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

157527966920 is a wasteful number, since it uses less digits than its factorization.

157527966920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8835 (or 8831 counting only the distinct ones).

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 157527966920 in words is "one hundred fifty-seven billion, five hundred twenty-seven million, nine hundred sixty-six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 23 31 40 46 62 92 115 124 155 184 230 248 310 460 620 683 713 920 1240 1366 1426 2732 2852 3415 3565 5464 5704 6830 7130 8087 13660 14260 15709 16174 21173 27320 28520 31418 32348 40435 42346 62836 64696 78545 80870 84692 105865 125672 157090 161740 169384 186001 211730 250697 314180 323480 372002 423460 486979 501394 628360 744004 846920 930005 973958 1002788 1253485 1488008 1860010 1947916 2005576 2434895 2506970 3720020 3895832 4869790 5013940 5523421 5766031 7440040 9739580 10027880 11046842 11532062 19479160 22093684 23064124 27617105 28830155 44187368 46128248 55234210 57660310 110468420 115320620 127038683 171226051 220936840 230641240 254077366 342452102 508154732 635193415 684904204 856130255 1016309464 1270386830 1369808408 1712260510 2540773660 3424521020 3938199173 5081547320 6849042040 7876398346 15752796692 19690995865 31505593384 39381991730 78763983460 157527966920