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157365144 = 233219373109
BaseRepresentation
bin10010110000100…
…11001110011000
3101222002222101200
421120103032120
5310241141034
623340514200
73620403336
oct1130231630
9358088350
10157365144
1180912842
124484b960
13267aa391
1416c84b56
15dc36a99
hex9613398

157365144 has 96 divisors (see below), whose sum is σ = 460902000. Its totient is φ = 48335616.

The previous prime is 157365133. The next prime is 157365157. The reversal of 157365144 is 441563751.

157365144 is a `hidden beast` number, since 157 + 365 + 144 = 666.

It is a super-2 number, since 2×1573651442 = 49527577092281472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 157365099 and 157365108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49062 + ... + 52170.

Almost surely, 2157365144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157365144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230451000).

157365144 is an abundant number, since it is smaller than the sum of its proper divisors (303536856).

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

157365144 is a wasteful number, since it uses less digits than its factorization.

157365144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177 (or 3170 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 157365144 is about 12544.5264557894. The cubic root of 157365144 is about 539.8869722285.

The spelling of 157365144 in words is "one hundred fifty-seven million, three hundred sixty-five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 37 38 57 72 74 76 111 114 148 152 171 222 228 296 333 342 444 456 666 684 703 888 1332 1368 1406 2109 2664 2812 3109 4218 5624 6218 6327 8436 9327 12436 12654 16872 18654 24872 25308 27981 37308 50616 55962 59071 74616 111924 115033 118142 177213 223848 230066 236284 345099 354426 460132 472568 531639 690198 708852 920264 1035297 1063278 1380396 1417704 2070594 2126556 2185627 2760792 4141188 4253112 4371254 6556881 8282376 8742508 13113762 17485016 19670643 26227524 39341286 52455048 78682572 157365144