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13125956 = 2215532113
BaseRepresentation
bin110010000100…
…100101000100
3220200212102112
4302010211010
511330012311
61145200152
7216366044
oct62044504
926625375
1013125956
1174557a8
124490058
13294764c
141a59724
15124428b
hexc84944

13125956 has 12 divisors (see below), whose sum is σ = 22996092. Its totient is φ = 6555648.

The previous prime is 13125947. The next prime is 13125961. The reversal of 13125956 is 65952131.

It can be written as a sum of positive squares in 2 ways, for example, as 409600 + 12716356 = 640^2 + 3566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5156 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (1916341).

Almost surely, 213125956 is an apocalyptic number.

It is an amenable number.

13125956 is a deficient number, since it is larger than the sum of its proper divisors (9870136).

13125956 is a wasteful number, since it uses less digits than its factorization.

13125956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670 (or 3668 counting only the distinct ones).

The product of its digits is 8100, while the sum is 32.

The square root of 13125956 is about 3622.9761246798. The cubic root of 13125956 is about 235.8904260075.

The spelling of 13125956 in words is "thirteen million, one hundred twenty-five thousand, nine hundred fifty-six".

Divisors: 1 2 4 1553 2113 3106 4226 6212 8452 3281489 6562978 13125956