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22004332431 = 3491117112757
BaseRepresentation
bin10100011111100011…
…110111011110001111
32002210112000220110020
4110133203313132033
5330031102114211
614035245113223
71406200511454
oct243743673617
962715026406
1022004332431
119371965704
124321258813
1320c8a0ac63
1410ca58b82b
1588bbd7306
hex51f8f778f

22004332431 has 16 divisors (see below), whose sum is σ = 29426275968. Its totient is φ = 14626029600.

The previous prime is 22004332411. The next prime is 22004332457. The reversal of 22004332431 is 13423340022.

It is not a de Polignac number, because 22004332431 - 27 = 22004332303 is a prime.

It is a super-2 number, since 2×220043324312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004332411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718505 + ... + 1731261.

It is an arithmetic number, because the mean of its divisors is an integer number (1839142248).

Almost surely, 222004332431 is an apocalyptic number.

22004332431 is a deficient number, since it is larger than the sum of its proper divisors (7421943537).

22004332431 is a wasteful number, since it uses less digits than its factorization.

22004332431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14422.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 22004332431 its reverse (13423340022), we get a palindrome (35427672453).

The spelling of 22004332431 in words is "twenty-two billion, four million, three hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 3 491 1171 1473 3513 12757 38271 574961 1724883 6263687 14938447 18791061 44815341 7334777477 22004332431