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31311762342 = 2372106502593
BaseRepresentation
bin11101001010010100…
…111001001110100110
32222211011121100000120
4131022110321032212
51003111302343332
622215011422410
72155635405600
oct351224711646
988734540016
1031311762342
1112308745543
12609a2b4a06
132c5008ab33
14173074c170
15c33d8e32c
hex74a5393a6

31311762342 has 24 divisors (see below), whose sum is σ = 72847774296. Its totient is φ = 8946217728.

The previous prime is 31311762337. The next prime is 31311762353. The reversal of 31311762342 is 24326711313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53251003 + ... + 53251590.

It is an arithmetic number, because the mean of its divisors is an integer number (3035323929).

Almost surely, 231311762342 is an apocalyptic number.

31311762342 is an abundant number, since it is smaller than the sum of its proper divisors (41536011954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31311762342 is a wasteful number, since it uses less digits than its factorization.

31311762342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106502612 (or 106502605 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The spelling of 31311762342 in words is "thirty-one billion, three hundred eleven million, seven hundred sixty-two thousand, three hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 106502593 213005186 319507779 639015558 745518151 1491036302 2236554453 4473108906 5218627057 10437254114 15655881171 31311762342