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23313440212 = 2217342844709
BaseRepresentation
bin10101101101100101…
…101101110111010100
32020011202100110201121
4111231211231313110
5340221220041322
614413211533324
71453504654306
oct255545556724
966152313647
1023313440212
119983913767
12462775a244
132276cb464a
1411b239d976
15916ac5ec7
hex56d96ddd4

23313440212 has 12 divisors (see below), whose sum is σ = 43198433460. Its totient is φ = 10971030656.

The previous prime is 23313440209. The next prime is 23313440219. The reversal of 23313440212 is 21204431332.

It can be written as a sum of positive squares in 2 ways, for example, as 16201216656 + 7112223556 = 127284^2 + 84334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313440219) 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, 171422287 + ... + 171422422.

It is an arithmetic number, because the mean of its divisors is an integer number (3599869455).

Almost surely, 223313440212 is an apocalyptic number.

It is an amenable number.

23313440212 is a deficient number, since it is larger than the sum of its proper divisors (19884993248).

23313440212 is a wasteful number, since it uses less digits than its factorization.

23313440212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342844730 (or 342844728 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23313440212 its reverse (21204431332), we get a palindrome (44517871544).

The spelling of 23313440212 in words is "twenty-three billion, three hundred thirteen million, four hundred forty thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 342844709 685689418 1371378836 5828360053 11656720106 23313440212