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157632893 = 1129494147
BaseRepresentation
bin10010110010101…
…00100101111101
3101222121120200022
421121110211331
5310323223033
623350341525
73622600055
oct1131244575
9358546608
10157632893
1180a85a20
124495a8a5
1326872202
1416d14565
15dc8b098
hex965497d

157632893 has 8 divisors (see below), whose sum is σ = 177893280. Its totient is φ = 138360880.

The previous prime is 157632863. The next prime is 157632901. The reversal of 157632893 is 398236751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157632893 - 26 = 157632829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157632863) 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, 246755 + ... + 247392.

It is an arithmetic number, because the mean of its divisors is an integer number (22236660).

Almost surely, 2157632893 is an apocalyptic number.

It is an amenable number.

157632893 is a deficient number, since it is larger than the sum of its proper divisors (20260387).

157632893 is a wasteful number, since it uses less digits than its factorization.

157632893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494187.

The product of its digits is 272160, while the sum is 44.

The square root of 157632893 is about 12555.1938654885. The cubic root of 157632893 is about 540.1929957157.

The spelling of 157632893 in words is "one hundred fifty-seven million, six hundred thirty-two thousand, eight hundred ninety-three".

Divisors: 1 11 29 319 494147 5435617 14330263 157632893