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56508701312 = 277331190537
BaseRepresentation
bin110100101000001011…
…100101101010000000
312101212012002110022102
4310220023211222000
51411212211420222
641543145325532
74040224015220
oct645013455200
9171765073272
1056508701312
1121a68763748
12ab507968a8
13543734928b
142a40d1c080
15170aeb3d92
hexd282e5a80

56508701312 has 64 divisors (see below), whose sum is σ = 129047576640. Its totient is φ = 24144721920.

The previous prime is 56508701309. The next prime is 56508701329. The reversal of 56508701312 is 21310780565.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201308 + ... + 391844.

It is an arithmetic number, because the mean of its divisors is an integer number (2016368385).

Almost surely, 256508701312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56508701312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64523788320).

56508701312 is an abundant number, since it is smaller than the sum of its proper divisors (72538875328).

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

56508701312 is a wasteful number, since it uses less digits than its factorization.

56508701312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190889 (or 190877 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 56508701312 in words is "fifty-six billion, five hundred eight million, seven hundred one thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 331 448 662 896 1324 2317 2648 4634 5296 9268 10592 18536 21184 37072 42368 74144 148288 190537 296576 381074 762148 1333759 1524296 2667518 3048592 5335036 6097184 10670072 12194368 21340144 24388736 42680288 63067747 85360576 126135494 170721152 252270988 441474229 504541976 882948458 1009083952 1765896916 2018167904 3531793832 4036335808 7063587664 8072671616 14127175328 28254350656 56508701312