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13402792 = 2313128873
BaseRepresentation
bin110011001000…
…001010101000
3221012221011201
4303020022220
511412342132
61155133544
7221631124
oct63101250
927187151
1013402792
117624797
1245a42b4
132a13660
141acc584
15129b2e7
hexcc82a8

13402792 has 16 divisors (see below), whose sum is σ = 27063540. Its totient is φ = 6185856.

The previous prime is 13402787. The next prime is 13402793. The reversal of 13402792 is 29720431.

It can be written as a sum of positive squares in 2 ways, for example, as 13351716 + 51076 = 3654^2 + 226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13402792.

It is not an unprimeable number, because it can be changed into a prime (13402793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64333 + ... + 64540.

Almost surely, 213402792 is an apocalyptic number.

It is an amenable number.

13402792 is an abundant number, since it is smaller than the sum of its proper divisors (13660748).

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

13402792 is a wasteful number, since it uses less digits than its factorization.

13402792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128892 (or 128888 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13402792 is about 3660.9823818205. The cubic root of 13402792 is about 237.5372691282.

The spelling of 13402792 in words is "thirteen million, four hundred two thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 13 26 52 104 128873 257746 515492 1030984 1675349 3350698 6701396 13402792