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31474746084 = 22317261148783
BaseRepresentation
bin11101010100000010…
…101000001011100100
310000020112021202200110
4131110002220023210
51003430013333314
622243113013020
72162654633055
oct352402501344
9100215252613
1031474746084
1112391745651
1261249b4170
132c77a84712
14174825672c
15c43335a59
hex7540a82e4

31474746084 has 72 divisors (see below), whose sum is σ = 79294730368. Its totient is φ = 9712488960.

The previous prime is 31474746071. The next prime is 31474746097. The reversal of 31474746084 is 48064747413.

It is an interprime number because it is at equal distance from previous prime (31474746071) and next prime (31474746097).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137157 + ... + 285939.

Almost surely, 231474746084 is an apocalyptic number.

31474746084 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31474746084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39647365184).

31474746084 is an abundant number, since it is smaller than the sum of its proper divisors (47819984284).

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

31474746084 is a wasteful number, since it uses less digits than its factorization.

31474746084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148885 (or 148866 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 31474746084 in words is "thirty-one billion, four hundred seventy-four million, seven hundred forty-six thousand, eighty-four".

Divisors: 1 2 3 4 6 12 17 34 51 61 68 102 122 183 204 244 289 366 578 732 867 1037 1156 1734 2074 3111 3468 4148 6222 12444 17629 35258 52887 70516 105774 148783 211548 297566 446349 595132 892698 1785396 2529311 5058622 7587933 9075763 10117244 15175866 18151526 27227289 30351732 36303052 42998287 54454578 85996574 108909156 128994861 154287971 171993148 257989722 308575942 462863913 515979444 617151884 925727826 1851455652 2622895507 5245791014 7868686521 10491582028 15737373042 31474746084