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22431000024 = 23321499207833
BaseRepresentation
bin10100111000111111…
…011110010111011000
32010220020212212100200
4110320333132113120
5331414314000044
614145450102200
71422601232346
oct247077362730
963806785320
1022431000024
119570795354
12442011a960
1321662287a4
14112b0d4996
158b43b7369
hex538fde5d8

22431000024 has 48 divisors (see below), whose sum is σ = 60791445000. Its totient is φ = 7471976064.

The previous prime is 22431000017. The next prime is 22431000041. The reversal of 22431000024 is 42000013422.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22430999970 and 22431000006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4012 + ... + 211844.

Almost surely, 222431000024 is an apocalyptic number.

22431000024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22431000024 is an abundant number, since it is smaller than the sum of its proper divisors (38360444976).

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

22431000024 is a wasteful number, since it uses less digits than its factorization.

22431000024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209344 (or 209337 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22431000024 its reverse (42000013422), we get a palindrome (64431013446).

The spelling of 22431000024 in words is "twenty-two billion, four hundred thirty-one million, twenty-four", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1499 2998 4497 5996 8994 11992 13491 17988 26982 35976 53964 107928 207833 415666 623499 831332 1246998 1662664 1870497 2493996 3740994 4987992 7481988 14963976 311541667 623083334 934625001 1246166668 1869250002 2492333336 2803875003 3738500004 5607750006 7477000008 11215500012 22431000024