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31422313103 = 1721031055609
BaseRepresentation
bin11101010000111010…
…100111001010001111
310000002212121220011012
4131100322213022033
51003323103004403
622234001115435
72161450153166
oct352072471217
9100085556135
1031422313103
1112365092a05
12610b328b7b
132c69c56a9c
1417412c83dd
15c3d929ed8
hex750ea728f

31422313103 has 12 divisors (see below), whose sum is σ = 33703516080. Its totient is φ = 29286788352.

The previous prime is 31422313067. The next prime is 31422313123. The reversal of 31422313103 is 30131322413.

It is not a de Polignac number, because 31422313103 - 28 = 31422312847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422313123) 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 11 ways as a sum of consecutive naturals, for example, 498038 + ... + 557571.

It is an arithmetic number, because the mean of its divisors is an integer number (2808626340).

Almost surely, 231422313103 is an apocalyptic number.

31422313103 is a deficient number, since it is larger than the sum of its proper divisors (2281202977).

31422313103 is a wasteful number, since it uses less digits than its factorization.

31422313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055746 (or 1055729 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31422313103 its reverse (30131322413), we get a palindrome (61553635516).

The spelling of 31422313103 in words is "thirty-one billion, four hundred twenty-two million, three hundred thirteen thousand, one hundred three".

Divisors: 1 17 103 289 1751 29767 1055609 17945353 108727727 305071001 1848371359 31422313103