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55918136 = 23131229233
BaseRepresentation
bin1101010101001…
…1111000111000
310220012221021002
43111103320320
5103303340021
65314304132
71246203431
oct325237070
9126187232
1055918136
112962313a
1216888048
13b77b071
1475d8488
154d9850b
hex3553e38

55918136 has 32 divisors (see below), whose sum is σ = 106563600. Its totient is φ = 27505920.

The previous prime is 55918123. The next prime is 55918139. The reversal of 55918136 is 63181955.

It is a self number, because there is not a number n which added to its sum of digits gives 55918136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55918139) 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, 239876 + ... + 240108.

Almost surely, 255918136 is an apocalyptic number.

It is an amenable number.

55918136 is a deficient number, since it is larger than the sum of its proper divisors (50645464).

55918136 is a wasteful number, since it uses less digits than its factorization.

55918136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 595 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 55918136 is about 7477.8430045034. The cubic root of 55918136 is about 382.3997168290.

The spelling of 55918136 in words is "fifty-five million, nine hundred eighteen thousand, one hundred thirty-six".

Divisors: 1 2 4 8 131 229 233 262 458 466 524 916 932 1048 1832 1864 29999 30523 53357 59998 61046 106714 119996 122092 213428 239992 244184 426856 6989767 13979534 27959068 55918136