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56287037167172 = 22721892571517401
BaseRepresentation
bin11001100110001010110001…
…10110110001011001000100
321101021222200101202201002122
430303011120312301121010
524334201323003322142
6315413524035025112
714566414152536300
oct1463053066613104
9241258611681078
1056287037167172
1116a31220098659
12639097aa3b198
132553aca123c96
14dc8442ac6d00
1567924d2471d2
hex333158db1644

56287037167172 has 36 divisors (see below), whose sum is σ = 114585006618684. Its totient is φ = 24122872569600.

The previous prime is 56287037167159. The next prime is 56287037167181. The reversal of 56287037167172 is 27176173078265.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220697006656 + 56066340160516 = 469784^2 + 7487746^2 .

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, 36335672 + ... + 37853072.

It is an arithmetic number, because the mean of its divisors is an integer number (3182916850519).

Almost surely, 256287037167172 is an apocalyptic number.

It is an amenable number.

56287037167172 is an abundant number, since it is smaller than the sum of its proper divisors (58297969451512).

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

56287037167172 is a wasteful number, since it uses less digits than its factorization.

56287037167172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706676 (or 1706667 counting only the distinct ones).

The product of its (nonzero) digits is 41489280, while the sum is 62.

The spelling of 56287037167172 in words is "fifty-six trillion, two hundred eighty-seven billion, thirty-seven million, one hundred sixty-seven thousand, one hundred seventy-two".

Divisors: 1 2 4 7 14 28 49 98 196 189257 378514 757028 1324799 1517401 2649598 3034802 5299196 6069604 9273593 10621807 18547186 21243614 37094372 42487228 74352649 148705298 297410596 287178761057 574357522114 1148715044228 2010251327399 4020502654798 8041005309596 14071759291793 28143518583586 56287037167172