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3112639142788 = 227217934165409
BaseRepresentation
bin101101010010110111110…
…000000001101110000100
3102000120021011200121010101
4231102313300001232010
5401444141110032123
610341532055133444
7440611046113300
oct55226760015604
912016234617111
103112639142788
11aa007671692a
12423300674284
1319769ca26356
14aa91c7cad00
1555e7839eaad
hex2d4b7c01b84

3112639142788 has 36 divisors (see below), whose sum is σ = 6709175974620. Its totient is φ = 1255518308352.

The previous prime is 3112639142783. The next prime is 3112639142797. The reversal of 3112639142788 is 8872419362113.

It can be written as a sum of positive squares in 2 ways, for example, as 2543999480064 + 568639662724 = 1594992^2 + 754082^2 .

It is not an unprimeable number, because it can be changed into a prime (3112639142783) 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, 467079373 + ... + 467086036.

It is an arithmetic number, because the mean of its divisors is an integer number (186365999295).

Almost surely, 23112639142788 is an apocalyptic number.

It is an amenable number.

3112639142788 is an abundant number, since it is smaller than the sum of its proper divisors (3596536831832).

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

3112639142788 is a wasteful number, since it uses less digits than its factorization.

3112639142788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934165444 (or 934165435 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The spelling of 3112639142788 in words is "three trillion, one hundred twelve billion, six hundred thirty-nine million, one hundred forty-two thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 17 28 34 49 68 98 119 196 238 476 833 1666 3332 934165409 1868330818 3736661636 6539157863 13078315726 15880811953 26156631452 31761623906 45774105041 63523247812 91548210082 111165683671 183096420164 222331367342 444662734684 778159785697 1556319571394 3112639142788