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53113137 = 3711317417
BaseRepresentation
bin1100101010011…
…1000100110001
310200221102112020
43022213010301
5102044110022
65134222053
71213311540
oct312470461
9120842466
1053113137
1127a87760
1215954929
13b0083bc
1470a8157
1549e235c
hex32a7131

53113137 has 32 divisors (see below), whose sum is σ = 91152384. Its totient is φ = 26697600.

The previous prime is 53113129. The next prime is 53113139. The reversal of 53113137 is 73131135.

It is not a de Polignac number, because 53113137 - 23 = 53113129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53113139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3453 + ... + 10869.

It is an arithmetic number, because the mean of its divisors is an integer number (2848512).

Almost surely, 253113137 is an apocalyptic number.

It is an amenable number.

53113137 is a deficient number, since it is larger than the sum of its proper divisors (38039247).

53113137 is a wasteful number, since it uses less digits than its factorization.

53113137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469.

The product of its digits is 945, while the sum is 24.

The square root of 53113137 is about 7287.8760280345. The cubic root of 53113137 is about 375.8956652756.

It can be divided in two parts, 5311 and 3137, that added together give a palindrome (8448).

The spelling of 53113137 in words is "fifty-three million, one hundred thirteen thousand, one hundred thirty-seven".

Divisors: 1 3 7 11 21 31 33 77 93 217 231 341 651 1023 2387 7161 7417 22251 51919 81587 155757 229927 244761 571109 689781 1609489 1713327 2529197 4828467 7587591 17704379 53113137