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56785089480 = 233571931114773
BaseRepresentation
bin110100111000101001…
…111011001111001000
312102120110011102121020
4310320221323033020
51412243440330410
642030421312440
74050121203510
oct647051731710
9172513142536
1056785089480
112209a780219
12b009265720
13547c69a982
142a69906840
1517253aba70
hexd38a7b3c8

56785089480 has 256 divisors, whose sum is σ = 211551436800. Its totient is φ = 11899560960.

The previous prime is 56785089469. The next prime is 56785089521. The reversal of 56785089480 is 8498058765.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 437374 + ... + 552146.

It is an arithmetic number, because the mean of its divisors is an integer number (826372800).

Almost surely, 256785089480 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 56785089480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105775718400).

56785089480 is an abundant number, since it is smaller than the sum of its proper divisors (154766347320).

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

56785089480 is a wasteful number, since it uses less digits than its factorization.

56785089480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114844 (or 114840 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 56785089480 in words is "fifty-six billion, seven hundred eighty-five million, eighty-nine thousand, four hundred eighty".