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23213210133 = 3171292335221
BaseRepresentation
bin10101100111100111…
…010111101000010101
32012220202202020220110
4111213213113220111
5340020040211013
614355231353233
71451150013321
oct254747275025
965822666813
1023213210133
119932285393
1245ba082819
13225c2c01c9
1411a2d4c981
1590cdc82c3
hex5679d7a15

23213210133 has 16 divisors (see below), whose sum is σ = 32775057216. Its totient is φ = 14563610880.

The previous prime is 23213210107. The next prime is 23213210143. The reversal of 23213210133 is 33101231232.

It is not a de Polignac number, because 23213210133 - 216 = 23213144597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213210143) 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, 641463 + ... + 676683.

It is an arithmetic number, because the mean of its divisors is an integer number (2048441076).

Almost surely, 223213210133 is an apocalyptic number.

It is an amenable number.

23213210133 is a deficient number, since it is larger than the sum of its proper divisors (9561847083).

23213210133 is a wasteful number, since it uses less digits than its factorization.

23213210133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48164.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23213210133 its reverse (33101231232), we get a palindrome (56314441365).

The spelling of 23213210133 in words is "twenty-three billion, two hundred thirteen million, two hundred ten thousand, one hundred thirty-three".

Divisors: 1 3 17 51 12923 35221 38769 105663 219691 598757 659073 1796271 455160983 1365482949 7737736711 23213210133