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13135912 = 237383271
BaseRepresentation
bin110010000111…
…000000101000
3220201101002021
4302013000220
511330322122
61145314224
7216440056
oct62070050
926641067
1013135912
117462229
124495974
13294c03a
141a5d1d6
1512471c7
hexc87028

13135912 has 32 divisors (see below), whose sum is σ = 25361280. Its totient is φ = 6376320.

The previous prime is 13135879. The next prime is 13135919. The reversal of 13135912 is 21953131.

It is not an unprimeable number, because it can be changed into a prime (13135919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48337 + ... + 48607.

It is an arithmetic number, because the mean of its divisors is an integer number (792540).

Almost surely, 213135912 is an apocalyptic number.

It is an amenable number.

13135912 is a deficient number, since it is larger than the sum of its proper divisors (12225368).

13135912 is a wasteful number, since it uses less digits than its factorization.

13135912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 429 counting only the distinct ones).

The product of its digits is 810, while the sum is 25.

The square root of 13135912 is about 3624.3498727358. The cubic root of 13135912 is about 235.9500516721.

It can be divided in two parts, 1313 and 5912, that added together give a square (7225 = 852).

The spelling of 13135912 in words is "thirteen million, one hundred thirty-five thousand, nine hundred twelve".

Divisors: 1 2 4 8 73 83 146 166 271 292 332 542 584 664 1084 2168 6059 12118 19783 22493 24236 39566 44986 48472 79132 89972 158264 179944 1641989 3283978 6567956 13135912