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157216886 = 2619771319
BaseRepresentation
bin10010101111011…
…11000001110110
3101221211110000122
421113233001312
5310221420021
623333411542
73616215161
oct1127570166
9357743018
10157216886
1180821412
1244799bb2
1326757a58
1416c46ad8
15dc07bab
hex95ef076

157216886 has 16 divisors (see below), whose sum is σ = 240118560. Its totient is φ = 77182080.

The previous prime is 157216883. The next prime is 157216931. The reversal of 157216886 is 688612751.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157216883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118535 + ... + 119853.

It is an arithmetic number, because the mean of its divisors is an integer number (15007410).

Almost surely, 2157216886 is an apocalyptic number.

157216886 is a deficient number, since it is larger than the sum of its proper divisors (82901674).

157216886 is a wasteful number, since it uses less digits than its factorization.

157216886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its digits is 161280, while the sum is 44.

The square root of 157216886 is about 12538.6157928218. The cubic root of 157216886 is about 539.7173715350.

The spelling of 157216886 in words is "one hundred fifty-seven million, two hundred sixteen thousand, eight hundred eighty-six".

Divisors: 1 2 61 122 977 1319 1954 2638 59597 80459 119194 160918 1288663 2577326 78608443 157216886