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52111137 = 31317531483
BaseRepresentation
bin1100011011001…
…0011100100001
310122001112001010
43012302130201
5101320024022
65100531133
71201636341
oct306623441
9118045033
1052111137
1127462961
1215550aa9
13aa472c0
146cc6d21
15489550c
hex31b2721

52111137 has 32 divisors (see below), whose sum is σ = 80777088. Its totient is φ = 29592576.

The previous prime is 52111127. The next prime is 52111159. The reversal of 52111137 is 73111125.

It is a happy number.

It is not a de Polignac number, because 52111137 - 24 = 52111121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52111127) 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, 34398 + ... + 35880.

It is an arithmetic number, because the mean of its divisors is an integer number (2524284).

Almost surely, 252111137 is an apocalyptic number.

It is an amenable number.

52111137 is a deficient number, since it is larger than the sum of its proper divisors (28665951).

52111137 is a wasteful number, since it uses less digits than its factorization.

52111137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569.

The product of its digits is 210, while the sum is 21.

The square root of 52111137 is about 7218.8044023924. The cubic root of 52111137 is about 373.5168367831.

The spelling of 52111137 in words is "fifty-two million, one hundred eleven thousand, one hundred thirty-seven".

Divisors: 1 3 13 17 39 51 53 159 221 663 689 901 1483 2067 2703 4449 11713 19279 25211 35139 57837 75633 78599 235797 327743 983229 1021787 1336183 3065361 4008549 17370379 52111137