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3131045066120 = 23578276126653
BaseRepresentation
bin101101100100000000110…
…101000011010110001000
3102002022202220200101021112
4231210000311003112020
5402244340014103440
610354214322025452
7442132133640326
oct55440065032610
912068686611245
103131045066120
11aa796134a514
124269987a8288
1319934409034a
14ab7870c0d16
15566a41db965
hex2d900d43588

3131045066120 has 16 divisors (see below), whose sum is σ = 7044851398860. Its totient is φ = 1252418026432.

The previous prime is 3131045066111. The next prime is 3131045066131. The reversal of 3131045066120 is 216605401313.

It can be written as a sum of positive squares in 2 ways, for example, as 3117788307076 + 13256759044 = 1765726^2 + 115138^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39138063287 + ... + 39138063366.

Almost surely, 23131045066120 is an apocalyptic number.

It is an amenable number.

3131045066120 is an abundant number, since it is smaller than the sum of its proper divisors (3913806332740).

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

3131045066120 is a wasteful number, since it uses less digits than its factorization.

3131045066120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78276126664 (or 78276126660 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 3131045066120 in words is "three trillion, one hundred thirty-one billion, forty-five million, sixty-six thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 78276126653 156552253306 313104506612 391380633265 626209013224 782761266530 1565522533060 3131045066120