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157899357 = 32711227849
BaseRepresentation
bin10010110100101…
…01101001011101
3102000010010012100
421122111221131
5310410234412
623400155313
73625056660
oct1132255135
9360103170
10157899357
1181148140
1244a68b39
1326936595
1416d836d7
15dcdeedc
hex9695a5d

157899357 has 24 divisors (see below), whose sum is σ = 284356800. Its totient is φ = 82025280.

The previous prime is 157899353. The next prime is 157899361. The reversal of 157899357 is 753998751.

It is an interprime number because it is at equal distance from previous prime (157899353) and next prime (157899361).

It is not a de Polignac number, because 157899357 - 22 = 157899353 is a prime.

It is a super-3 number, since 3×1578993573 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157899353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113232 + ... + 114617.

It is an arithmetic number, because the mean of its divisors is an integer number (11848200).

Almost surely, 2157899357 is an apocalyptic number.

It is an amenable number.

157899357 is a deficient number, since it is larger than the sum of its proper divisors (126457443).

157899357 is a wasteful number, since it uses less digits than its factorization.

157899357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227873 (or 227870 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The square root of 157899357 is about 12565.8010886692. The cubic root of 157899357 is about 540.4972066640.

The spelling of 157899357 in words is "one hundred fifty-seven million, eight hundred ninety-nine thousand, three hundred fifty-seven".

Divisors: 1 3 7 9 11 21 33 63 77 99 231 693 227849 683547 1594943 2050641 2506339 4784829 7519017 14354487 17544373 22557051 52633119 157899357