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56890786212 = 2233131723313343
BaseRepresentation
bin110100111110111101…
…001000000110100100
312102211211001101021000
4310332331020012210
51413003020124322
642045114553300
74052543463321
oct647675100644
9172754041230
1056890786212
1122144402797
12b038738830
135498557410
142a7997bb48
15172e7d93ac
hexd3ef481a4

56890786212 has 384 divisors, whose sum is σ = 181211627520. Its totient is φ = 15245936640.

The previous prime is 56890786187. The next prime is 56890786259. The reversal of 56890786212 is 21268709865.

56890786212 is a `hidden beast` number, since 5 + 6 + 8 + 9 + 0 + 7 + 8 + 621 + 2 = 666.

56890786212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17016213 + ... + 17019555.

It is an arithmetic number, because the mean of its divisors is an integer number (471905280).

Almost surely, 256890786212 is an apocalyptic number.

56890786212 is a gapful number since it is divisible by the number (52) 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 56890786212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90605813760).

56890786212 is an abundant number, since it is smaller than the sum of its proper divisors (124320841308).

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

56890786212 is a wasteful number, since it uses less digits than its factorization.

56890786212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 3432 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 56890786212 in words is "fifty-six billion, eight hundred ninety million, seven hundred eighty-six thousand, two hundred twelve".