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13412631 = 34470877
BaseRepresentation
bin110011001010…
…100100010111
3221020102200010
4303022210113
511413201011
61155251303
7222001611
oct63124427
927212603
1013412631
117631121
1245a9b33
132a17c8b
141ad1db1
15129e1a6
hexcca917

13412631 has 4 divisors (see below), whose sum is σ = 17883512. Its totient is φ = 8941752.

The previous prime is 13412629. The next prime is 13412671. The reversal of 13412631 is 13621431.

13412631 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13412631 - 21 = 13412629 is a prime.

It is a super-2 number, since 2×134126312 = 359797340684322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13412598 and 13412607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412671) 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, 2235436 + ... + 2235441.

It is an arithmetic number, because the mean of its divisors is an integer number (4470878).

Almost surely, 213412631 is an apocalyptic number.

13412631 is a deficient number, since it is larger than the sum of its proper divisors (4470881).

13412631 is an equidigital number, since it uses as much as digits as its factorization.

13412631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470880.

The product of its digits is 432, while the sum is 21.

The square root of 13412631 is about 3662.3259002989. The cubic root of 13412631 is about 237.5953803419.

The spelling of 13412631 in words is "thirteen million, four hundred twelve thousand, six hundred thirty-one".

Divisors: 1 3 4470877 13412631