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157881364 = 22191206651
BaseRepresentation
bin10010110100100…
…01010000010100
3102000002012111221
421122101100110
5310404200424
623355540124
73624653344
oct1132212024
9360065457
10157881364
1181135673
1244a5a644
132692b334
1416d7ad24
15dcd99e4
hex9691414

157881364 has 12 divisors (see below), whose sum is σ = 277740288. Its totient is φ = 78527000.

The previous prime is 157881349. The next prime is 157881391. The reversal of 157881364 is 463188751.

It is a self number, because there is not a number n which added to its sum of digits gives 157881364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102562 + ... + 104089.

It is an arithmetic number, because the mean of its divisors is an integer number (23145024).

Almost surely, 2157881364 is an apocalyptic number.

It is an amenable number.

157881364 is a deficient number, since it is larger than the sum of its proper divisors (119858924).

157881364 is a wasteful number, since it uses less digits than its factorization.

157881364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206846 (or 206844 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 157881364 is about 12565.0851171013. The cubic root of 157881364 is about 540.4766755783.

The spelling of 157881364 in words is "one hundred fifty-seven million, eight hundred eighty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 191 382 764 206651 413302 826604 39470341 78940682 157881364