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157804134 = 23193136273
BaseRepresentation
bin10010110011111…
…10011001100110
3101222221021120120
421121332121212
5310344213014
623354142410
73624212235
oct1131763146
9358837516
10157804134
1181092644
1244a21a06
1326902137
1416d5ab1c
15dcc1ba9
hex967e666

157804134 has 16 divisors (see below), whose sum is σ = 317245872. Its totient is φ = 52328448.

The previous prime is 157804123. The next prime is 157804151. The reversal of 157804134 is 431408751.

It is a junction number, because it is equal to n+sod(n) for n = 157804095 and 157804104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66979 + ... + 69294.

It is an arithmetic number, because the mean of its divisors is an integer number (19827867).

Almost surely, 2157804134 is an apocalyptic number.

157804134 is an abundant number, since it is smaller than the sum of its proper divisors (159441738).

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

157804134 is a wasteful number, since it uses less digits than its factorization.

157804134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136471.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 157804134 is about 12562.0115427427. The cubic root of 157804134 is about 540.3885338232.

The spelling of 157804134 in words is "one hundred fifty-seven million, eight hundred four thousand, one hundred thirty-four".

Divisors: 1 2 3 6 193 386 579 1158 136273 272546 408819 817638 26300689 52601378 78902067 157804134