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13022031013 = 114431137991
BaseRepresentation
bin11000010000010110…
…00110110010100101
31020121112020201022221
430020023012302211
5203132114443023
65552055152341
7640461302665
oct141013066245
936545221287
1013022031013
115582662702
1226350756b1
1312c6b166c4
148b76621a5
1551335485d
hex3082c6ca5

13022031013 has 4 divisors (see below), whose sum is σ = 13023180448. Its totient is φ = 13020881580.

The previous prime is 13022030963. The next prime is 13022031019. The reversal of 13022031013 is 31013022031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13022031013 - 229 = 12485160101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022031019) 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, 557553 + ... + 580438.

It is an arithmetic number, because the mean of its divisors is an integer number (3255795112).

Almost surely, 213022031013 is an apocalyptic number.

It is an amenable number.

13022031013 is a deficient number, since it is larger than the sum of its proper divisors (1149435).

13022031013 is a wasteful number, since it uses less digits than its factorization.

13022031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149434.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13022031013 its reverse (31013022031), we get a palindrome (44035053044).

The spelling of 13022031013 in words is "thirteen billion, twenty-two million, thirty-one thousand, thirteen".

Divisors: 1 11443 1137991 13022031013