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13072046 = 213502771
BaseRepresentation
bin110001110111…
…011010101110
3220121010110212
4301313122232
511321301141
61144102422
7216052631
oct61673256
926533425
1013072046
117419249
124464a12
132928c50
141a43c18
1512332eb
hexc776ae

13072046 has 8 divisors (see below), whose sum is σ = 21116424. Its totient is φ = 6033240.

The previous prime is 13072021. The next prime is 13072067. The reversal of 13072046 is 64027031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×130720462 = 341756773252232, which contains 22 as substring.

It is a congruent number.

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, 251360 + ... + 251411.

It is an arithmetic number, because the mean of its divisors is an integer number (2639553).

Almost surely, 213072046 is an apocalyptic number.

13072046 is a deficient number, since it is larger than the sum of its proper divisors (8044378).

13072046 is a wasteful number, since it uses less digits than its factorization.

13072046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502786.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13072046 is about 3615.5284537672. The cubic root of 13072046 is about 235.5670387022.

Adding to 13072046 its reverse (64027031), we get a palindrome (77099077).

The spelling of 13072046 in words is "thirteen million, seventy-two thousand, forty-six".

Divisors: 1 2 13 26 502771 1005542 6536023 13072046