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31422131323 = 115948416227
BaseRepresentation
bin11101010000111001…
…111010110001111011
310000002212021122210121
4131100321322301323
51003323031200243
622233553154111
72161445465212
oct352071726173
9100085248717
1031422131323
1112364a79380
12610b25b937
132c69bc211b
14174127c079
15c3d8e11ed
hex750e7ac7b

31422131323 has 8 divisors (see below), whose sum is σ = 34859684160. Its totient is φ = 28081411080.

The previous prime is 31422131303. The next prime is 31422131333. The reversal of 31422131323 is 32313122413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31422131323 - 25 = 31422131291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31422131303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24207465 + ... + 24208762.

It is an arithmetic number, because the mean of its divisors is an integer number (4357460520).

Almost surely, 231422131323 is an apocalyptic number.

31422131323 is a deficient number, since it is larger than the sum of its proper divisors (3437552837).

31422131323 is a wasteful number, since it uses less digits than its factorization.

31422131323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48416297.

The product of its digits is 2592, while the sum is 25.

Adding to 31422131323 its reverse (32313122413), we get a palindrome (63735253736).

The spelling of 31422131323 in words is "thirty-one billion, four hundred twenty-two million, one hundred thirty-one thousand, three hundred twenty-three".

Divisors: 1 11 59 649 48416227 532578497 2856557393 31422131323