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20424011313 = 325130618861
BaseRepresentation
bin10011000001010111…
…011010111000110001
31221201101101021102110
4103001113122320301
5313312021330223
613214353235533
71322061142326
oct230127327061
957641337373
1020424011313
118730904aa2
123b5bb62ba9
131c064a53c4
14dba73ab4d
157e80c3d93
hex4c15dae31

20424011313 has 16 divisors (see below), whose sum is σ = 27352527552. Its totient is φ = 13555800000.

The previous prime is 20424011299. The next prime is 20424011341. The reversal of 20424011313 is 31311042402.

It is not a de Polignac number, because 20424011313 - 25 = 20424011281 is a prime.

It is a super-2 number, since 2×204240113132 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20424011313.

It is not an unprimeable number, because it can be changed into a prime (20424011393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2300503 + ... + 2309363.

It is an arithmetic number, because the mean of its divisors is an integer number (1709532972).

Almost surely, 220424011313 is an apocalyptic number.

It is an amenable number.

20424011313 is a deficient number, since it is larger than the sum of its proper divisors (6928516239).

20424011313 is a wasteful number, since it uses less digits than its factorization.

20424011313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12176.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20424011313 its reverse (31311042402), we get a palindrome (51735053715).

The spelling of 20424011313 in words is "twenty billion, four hundred twenty-four million, eleven thousand, three hundred thirteen".

Divisors: 1 3 251 753 3061 8861 9183 26583 768311 2224111 2304933 6672333 27123521 81370563 6808003771 20424011313