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13013320311 = 321445924479
BaseRepresentation
bin11000001111010011…
…11000001001110111
31020120220212011111100
430013221320021313
5203122402222221
65551144341143
7640324253235
oct140751701167
936526764440
1013013320311
115578753182
1226321747b3
1312c5086944
148b6435955
155126d3926
hex307a78277

13013320311 has 6 divisors (see below), whose sum is σ = 18797018240. Its totient is φ = 8675546868.

The previous prime is 13013320291. The next prime is 13013320319. The reversal of 13013320311 is 11302331031.

It is a happy number.

13013320311 is a `hidden beast` number, since 1 + 30 + 1 + 3 + 320 + 311 = 666.

It is not a de Polignac number, because 13013320311 - 26 = 13013320247 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 (13013320319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722962231 + ... + 722962248.

Almost surely, 213013320311 is an apocalyptic number.

13013320311 is a deficient number, since it is larger than the sum of its proper divisors (5783697929).

13013320311 is a wasteful number, since it uses less digits than its factorization.

13013320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445924485 (or 1445924482 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13013320311 its reverse (11302331031), we get a palindrome (24315651342).

The spelling of 13013320311 in words is "thirteen billion, thirteen million, three hundred twenty thousand, three hundred eleven".

Divisors: 1 3 9 1445924479 4337773437 13013320311