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157807092 = 22314988259
BaseRepresentation
bin10010110011111…
…11000111110100
3101222221102122010
421121333013310
5310344311332
623354204220
73624223662
oct1131770764
9358842563
10157807092
1181094893
1244a23670
13269035a1
1416d5bc32
15dcc29cc
hex967f1f4

157807092 has 24 divisors (see below), whose sum is σ = 370692000. Its totient is φ = 52248736.

The previous prime is 157807079. The next prime is 157807157. The reversal of 157807092 is 290708751.

It is a self number, because there is not a number n which added to its sum of digits gives 157807092.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42342 + ... + 45917.

It is an arithmetic number, because the mean of its divisors is an integer number (15445500).

Almost surely, 2157807092 is an apocalyptic number.

157807092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157807092 is an abundant number, since it is smaller than the sum of its proper divisors (212884908).

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

157807092 is a wasteful number, since it uses less digits than its factorization.

157807092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88415 (or 88413 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 157807092 is about 12562.1292781121. The cubic root of 157807092 is about 540.3919102858.

The spelling of 157807092 in words is "one hundred fifty-seven million, eight hundred seven thousand, ninety-two".

Divisors: 1 2 3 4 6 12 149 298 447 596 894 1788 88259 176518 264777 353036 529554 1059108 13150591 26301182 39451773 52602364 78903546 157807092