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13138112 = 261315791
BaseRepresentation
bin110010000111…
…100011000000
3220201111002202
4302013203000
511330404422
61145332332
7216446351
oct62074300
926644082
1013138112
117463949
1244970a8
132950040
141a5dd28
151247b92
hexc878c0

13138112 has 28 divisors (see below), whose sum is σ = 28078176. Its totient is φ = 6063360.

The previous prime is 13138109. The next prime is 13138123. The reversal of 13138112 is 21183131.

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, 7064 + ... + 8727.

It is an arithmetic number, because the mean of its divisors is an integer number (1002792).

Almost surely, 213138112 is an apocalyptic number.

It is an amenable number.

13138112 is an abundant number, since it is smaller than the sum of its proper divisors (14940064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13138112 is a wasteful number, since it uses less digits than its factorization.

13138112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816 (or 15806 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 13138112 is about 3624.6533627369. The cubic root of 13138112 is about 235.9632232264.

The spelling of 13138112 in words is "thirteen million, one hundred thirty-eight thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 832 15791 31582 63164 126328 205283 252656 410566 505312 821132 1010624 1642264 3284528 6569056 13138112