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14213131431 = 3191289193447
BaseRepresentation
bin11010011110010101…
…10010110010100111
31100200112111212221020
431033022302302213
5213102030201211
610310204422223
71012133423652
oct151712626247
940615455836
1014213131431
116033a40014
122907b47973
131456813155
1498b916899
15582bd3306
hex34f2b2ca7

14213131431 has 16 divisors (see below), whose sum is σ = 19963833600. Its totient is φ = 8969704128.

The previous prime is 14213131403. The next prime is 14213131453. The reversal of 14213131431 is 13413131241.

It is a happy number.

It is not a de Polignac number, because 14213131431 - 211 = 14213129383 is a prime.

It is a super-2 number, since 2×142131314312 (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 (14213131481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23251 + ... + 170196.

It is an arithmetic number, because the mean of its divisors is an integer number (1247739600).

Almost surely, 214213131431 is an apocalyptic number.

14213131431 is a deficient number, since it is larger than the sum of its proper divisors (5750702169).

14213131431 is a wasteful number, since it uses less digits than its factorization.

14213131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194758.

The product of its digits is 864, while the sum is 24.

Adding to 14213131431 its reverse (13413131241), we get a palindrome (27626262672).

The spelling of 14213131431 in words is "fourteen billion, two hundred thirteen million, one hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 3 19 57 1289 3867 24491 73473 193447 580341 3675493 11026479 249353183 748059549 4737710477 14213131431