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13992043631 = 19826389123
BaseRepresentation
bin11010000011111110…
…11010010001101111
31100010010111110111012
431001333122101233
5212123430344011
610232230015435
71003510260056
oct150177322157
940103443435
1013992043631
115a30164525
122865aa757b
13141ca84577
1496a40539d
1556d5b0a8b
hex341fda46f

13992043631 has 8 divisors (see below), whose sum is σ = 14730414720. Its totient is φ = 13253867352.

The previous prime is 13992043589. The next prime is 13992043651. The reversal of 13992043631 is 13634029931.

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

It is a cyclic number.

It is not a de Polignac number, because 13992043631 - 226 = 13924934767 is a prime.

It is a super-2 number, since 2×139920436312 (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 (13992043651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112436 + ... + 201558.

It is an arithmetic number, because the mean of its divisors is an integer number (1841301840).

Almost surely, 213992043631 is an apocalyptic number.

13992043631 is a deficient number, since it is larger than the sum of its proper divisors (738371089).

13992043631 is an equidigital number, since it uses as much as digits as its factorization.

13992043631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97405.

The product of its (nonzero) digits is 104976, while the sum is 41.

The spelling of 13992043631 in words is "thirteen billion, nine hundred ninety-two million, forty-three thousand, six hundred thirty-one".

Divisors: 1 19 8263 89123 156997 1693337 736423349 13992043631