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13231230133 = 111639837507
BaseRepresentation
bin11000101001010010…
…01000110010110101
31021011002220010120111
430110221020302311
5204044143331013
610024531103021
7645611412652
oct142451106265
937132803514
1013231230133
11567a759040
122693141a71
13132b271b74
148d735ac29
155268c973d
hex314a48cb5

13231230133 has 16 divisors (see below), whose sum is σ = 14539332096. Its totient is φ = 11940845040.

The previous prime is 13231230119. The next prime is 13231230137. The reversal of 13231230133 is 33103213231.

It is a cyclic number.

It is not a de Polignac number, because 13231230133 - 217 = 13231099061 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 (13231230137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758766 + ... + 1766272.

It is an arithmetic number, because the mean of its divisors is an integer number (908708256).

Almost surely, 213231230133 is an apocalyptic number.

It is an amenable number.

13231230133 is a deficient number, since it is larger than the sum of its proper divisors (1308101963).

13231230133 is a wasteful number, since it uses less digits than its factorization.

13231230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8664.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13231230133 its reverse (33103213231), we get a palindrome (46334443364).

The spelling of 13231230133 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty thousand, one hundred thirty-three".

Divisors: 1 11 163 983 1793 7507 10813 82577 160229 1223641 1762519 7379381 13460051 81173191 1202839103 13231230133