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52752531 = 3131971191
BaseRepresentation
bin1100100100111…
…1000010010011
310200021002212110
43021033002103
5102001040111
65122400403
71210250316
oct311170223
9120232773
1052752531
1127860837
1215800103
13ac10220
14701297d
1549705a6
hex324f093

52752531 has 16 divisors (see below), whose sum is σ = 79735040. Its totient is φ = 30754080.

The previous prime is 52752523. The next prime is 52752533. The reversal of 52752531 is 13525725.

It is not a de Polignac number, because 52752531 - 23 = 52752523 is a prime.

It is a super-2 number, since 2×527525312 = 5565659053811922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52752533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34855 + ... + 36336.

It is an arithmetic number, because the mean of its divisors is an integer number (4983440).

Almost surely, 252752531 is an apocalyptic number.

52752531 is a deficient number, since it is larger than the sum of its proper divisors (26982509).

52752531 is a wasteful number, since it uses less digits than its factorization.

52752531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71226.

The product of its digits is 10500, while the sum is 30.

The square root of 52752531 is about 7263.0937623027. The cubic root of 52752531 is about 375.0430315064.

The spelling of 52752531 in words is "fifty-two million, seven hundred fifty-two thousand, five hundred thirty-one".

Divisors: 1 3 13 19 39 57 247 741 71191 213573 925483 1352629 2776449 4057887 17584177 52752531