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22431001012 = 2271395763361
BaseRepresentation
bin10100111000111111…
…011110100110110100
32010220020212220201021
4110320333132212310
5331414314013022
614145450110524
71422601235260
oct247077364664
963806786637
1022431001012
119570796072
12442011b444
132166229084
14112b0d50a0
158b43b77c7
hex538fde9b4

22431001012 has 24 divisors (see below), whose sum is σ = 45184758080. Its totient is φ = 9544124160.

The previous prime is 22431000967. The next prime is 22431001031. The reversal of 22431001012 is 21010013422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2877789 + ... + 2885572.

Almost surely, 222431001012 is an apocalyptic number.

It is an amenable number.

22431001012 is an abundant number, since it is smaller than the sum of its proper divisors (22753757068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22431001012 is a wasteful number, since it uses less digits than its factorization.

22431001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5763511 (or 5763509 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22431001012 its reverse (21010013422), we get a palindrome (43441014434).

The spelling of 22431001012 in words is "twenty-two billion, four hundred thirty-one million, one thousand, twelve".

Divisors: 1 2 4 7 14 28 139 278 556 973 1946 3892 5763361 11526722 23053444 40343527 80687054 161374108 801107179 1602214358 3204428716 5607750253 11215500506 22431001012