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13769404631 = 26995101669
BaseRepresentation
bin11001101001011100…
…00111000011010111
31022112121120020012022
430310232013003113
5211144431422011
610154154043355
7665135002553
oct146456070327
938477506168
1013769404631
115926519554
12280341955b
1313b5901908
14948a0c863
15558c838db
hex334b870d7

13769404631 has 4 divisors (see below), whose sum is σ = 13774509000. Its totient is φ = 13764300264.

The previous prime is 13769404589. The next prime is 13769404637. The reversal of 13769404631 is 13640496731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13769404631 is a prime.

It is a super-2 number, since 2×137694046312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13769404637) 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, 2548136 + ... + 2553533.

It is an arithmetic number, because the mean of its divisors is an integer number (3443627250).

Almost surely, 213769404631 is an apocalyptic number.

13769404631 is a deficient number, since it is larger than the sum of its proper divisors (5104369).

13769404631 is an equidigital number, since it uses as much as digits as its factorization.

13769404631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104368.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 13769404631 in words is "thirteen billion, seven hundred sixty-nine million, four hundred four thousand, six hundred thirty-one".

Divisors: 1 2699 5101669 13769404631