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157156516 = 221123831871
BaseRepresentation
bin10010101111000…
…00010010100100
3101221201101012201
421113200102210
5310213002031
623332224244
73615544156
oct1127402244
9357641181
10157156516
1180790020
124476b084
132673642a
15dbe4d61
hex95e04a4

157156516 has 48 divisors (see below), whose sum is σ = 317011968. Its totient is φ = 67469600.

The previous prime is 157156511. The next prime is 157156537. The reversal of 157156516 is 615651751.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (157156511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83061 + ... + 84931.

It is an arithmetic number, because the mean of its divisors is an integer number (6604416).

Almost surely, 2157156516 is an apocalyptic number.

It is an amenable number.

157156516 is an abundant number, since it is smaller than the sum of its proper divisors (159855452).

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

157156516 is a wasteful number, since it uses less digits than its factorization.

157156516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1990 counting only the distinct ones).

The product of its digits is 31500, while the sum is 37.

The square root of 157156516 is about 12536.2081986540. The cubic root of 157156516 is about 539.6482803368.

The spelling of 157156516 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, five hundred sixteen".