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13294656 = 263223081
BaseRepresentation
bin110010101101…
…110001000000
3221000102211200
4302231301000
511400412111
61152541200
7221000634
oct62556100
927012750
1013294656
117560521
124551800
1329a637b
141aa0dc4
151279256
hexcadc40

13294656 has 42 divisors (see below), whose sum is σ = 38108382. Its totient is φ = 4431360.

The previous prime is 13294651. The next prime is 13294669. The reversal of 13294656 is 65649231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 2005056 = 3360^2 + 1416^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13294656.

It is not an unprimeable number, because it can be changed into a prime (13294651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10965 + ... + 12116.

Almost surely, 213294656 is an apocalyptic number.

13294656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13294656 is an abundant number, since it is smaller than the sum of its proper divisors (24813726).

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

13294656 is a wasteful number, since it uses less digits than its factorization.

13294656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23099 (or 23086 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13294656 is about 3646.1837583973. The cubic root of 13294656 is about 236.8967129912.

The spelling of 13294656 in words is "thirteen million, two hundred ninety-four thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 23081 46162 69243 92324 138486 184648 207729 276972 369296 415458 553944 738592 830916 1107888 1477184 1661832 2215776 3323664 4431552 6647328 13294656