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157163616 = 25322292383
BaseRepresentation
bin10010101111000…
…10000001100000
3101221201201221200
421113202001200
5310213213431
623332321200
73615603651
oct1127420140
9357651850
10157163616
1180795395
1244773200
132673972c
1416c31528
15dbe6ee6
hex95e2060

157163616 has 72 divisors (see below), whose sum is σ = 449074080. Its totient is φ = 52137216.

The previous prime is 157163599. The next prime is 157163639. The reversal of 157163616 is 616361751.

157163616 is a `hidden beast` number, since 1 + 5 + 7 + 1 + 636 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64761 + ... + 67143.

It is an arithmetic number, because the mean of its divisors is an integer number (6237140).

Almost surely, 2157163616 is an apocalyptic number.

157163616 is a gapful number since it is divisible by the number (16) 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 157163616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224537040).

157163616 is an abundant number, since it is smaller than the sum of its proper divisors (291910464).

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

157163616 is a wasteful number, since it uses less digits than its factorization.

157163616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2617 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 157163616 is about 12536.4913751815. The cubic root of 157163616 is about 539.6564069382.

The spelling of 157163616 in words is "one hundred fifty-seven million, one hundred sixty-three thousand, six hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 229 288 458 687 916 1374 1832 2061 2383 2748 3664 4122 4766 5496 7149 7328 8244 9532 10992 14298 16488 19064 21447 21984 28596 32976 38128 42894 57192 65952 76256 85788 114384 171576 228768 343152 545707 686304 1091414 1637121 2182828 3274242 4365656 4911363 6548484 8731312 9822726 13096968 17462624 19645452 26193936 39290904 52387872 78581808 157163616