Search a number
-
+
157541956 = 221113275423
BaseRepresentation
bin10010110001111…
…10011001000100
3101222102221221021
421120332121010
5310312320311
623344400524
73622040665
oct1130763104
9358387837
10157541956
1180a23670
1244916144
132683c9c0
1416ccd36c
15dc6e171
hex963e644

157541956 has 24 divisors (see below), whose sum is σ = 323898624. Its totient is φ = 66101280.

The previous prime is 157541947. The next prime is 157541999. The reversal of 157541956 is 659145751.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137140 + ... + 138283.

It is an arithmetic number, because the mean of its divisors is an integer number (13495776).

Almost surely, 2157541956 is an apocalyptic number.

It is an amenable number.

157541956 is an abundant number, since it is smaller than the sum of its proper divisors (166356668).

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

157541956 is a wasteful number, since it uses less digits than its factorization.

157541956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275451 (or 275449 counting only the distinct ones).

The product of its digits is 189000, while the sum is 43.

The square root of 157541956 is about 12551.5718537560. The cubic root of 157541956 is about 540.0890982384.

The spelling of 157541956 in words is "one hundred fifty-seven million, five hundred forty-one thousand, nine hundred fifty-six".

Divisors: 1 2 4 11 13 22 26 44 52 143 286 572 275423 550846 1101692 3029653 3580499 6059306 7160998 12118612 14321996 39385489 78770978 157541956