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56207520000 = 2834544337
BaseRepresentation
bin110100010110001110…
…101011000100000000
312101002012100212020000
4310112032223010000
51410103111120000
641453230120000
74026606015462
oct642616530400
9171065325200
1056207520000
1121923752775
12aa87950000
1353b9b26898
142a12d1c132
1516de820000
hexd163ab100

56207520000 has 450 divisors, whose sum is σ = 209482067718. Its totient is φ = 14985216000.

The previous prime is 56207519987. The next prime is 56207520011. The reversal of 56207520000 is 2570265.

It can be written as a sum of positive squares in 5 ways, for example, as 40584519936 + 15623000064 = 201456^2 + 124992^2 .

It is a tau number, because it is divible by the number of its divisors (450).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 12957832 + ... + 12962168.

Almost surely, 256207520000 is an apocalyptic number.

56207520000 is a gapful number since it is divisible by the number (50) 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 56207520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104741033859).

56207520000 is an abundant number, since it is smaller than the sum of its proper divisors (153274547718).

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

56207520000 is an frugal number, since it uses more digits than its factorization.

56207520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385 (or 4347 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The spelling of 56207520000 in words is "fifty-six billion, two hundred seven million, five hundred twenty thousand".