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52910505 = 3251175789
BaseRepresentation
bin1100100111010…
…1100110101001
310200120010120100
43021311212221
5102021114010
65130020013
71211506014
oct311654651
9120503510
1052910505
112795949a
1215877609
13ac670bb
14705437b
1549a22c0
hex32759a9

52910505 has 12 divisors (see below), whose sum is σ = 91711620. Its totient is φ = 28218912.

The previous prime is 52910461. The next prime is 52910509. The reversal of 52910505 is 50501925.

It can be written as a sum of positive squares in 2 ways, for example, as 36288576 + 16621929 = 6024^2 + 4077^2 .

It is not a de Polignac number, because 52910505 - 26 = 52910441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52910509) 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, 587850 + ... + 587939.

It is an arithmetic number, because the mean of its divisors is an integer number (7642635).

Almost surely, 252910505 is an apocalyptic number.

It is an amenable number.

52910505 is a deficient number, since it is larger than the sum of its proper divisors (38801115).

52910505 is a wasteful number, since it uses less digits than its factorization.

52910505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175800 (or 1175797 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 52910505 is about 7273.9607505127. The cubic root of 52910505 is about 375.4170293920.

The spelling of 52910505 in words is "fifty-two million, nine hundred ten thousand, five hundred five".

Divisors: 1 3 5 9 15 45 1175789 3527367 5878945 10582101 17636835 52910505