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52172275 = 5212891619
BaseRepresentation
bin1100011100000…
…1010111110011
310122011121220111
43013001113303
5101324003100
65102122151
71202312521
oct307012763
9118147814
1052172275
11274a4891
1215580357
13aa6908c
146d01311
1548a86ba
hex31c15f3

52172275 has 12 divisors (see below), whose sum is σ = 64783800. Its totient is φ = 41679680.

The previous prime is 52172273. The next prime is 52172293. The reversal of 52172275 is 57227125.

It is not a de Polignac number, because 52172275 - 21 = 52172273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52172273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31416 + ... + 33034.

It is an arithmetic number, because the mean of its divisors is an integer number (5398650).

Almost surely, 252172275 is an apocalyptic number.

52172275 is a deficient number, since it is larger than the sum of its proper divisors (12611525).

52172275 is a wasteful number, since it uses less digits than its factorization.

52172275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 2913 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 52172275 is about 7223.0377958308. The cubic root of 52172275 is about 373.6628525799.

The spelling of 52172275 in words is "fifty-two million, one hundred seventy-two thousand, two hundred seventy-five".

Divisors: 1 5 25 1289 1619 6445 8095 32225 40475 2086891 10434455 52172275