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56102989824 = 21234731729
BaseRepresentation
bin110100001111111111…
…111011000000000000
312100210220200011210000
4310033333323000000
51404344331133244
641435013440000
74024166355000
oct641777730000
9170726604700
1056102989824
112187a7476a2
12aa58940000
1353a12880cb
142a030ac000
1516d5573169
hexd0fffb000

56102989824 has 1040 divisors, whose sum is σ = 214079976000. Its totient is φ = 14566293504.

The previous prime is 56102989823. The next prime is 56102989837. The reversal of 56102989824 is 42898920165.

It is a happy number.

56102989824 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 not an unprimeable number, because it can be changed into a prime (56102989823) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1934585842 + ... + 1934585870.

Almost surely, 256102989824 is an apocalyptic number.

56102989824 is a gapful number since it is divisible by the number (54) 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 56102989824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107039988000).

56102989824 is an abundant number, since it is smaller than the sum of its proper divisors (157976986176).

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

56102989824 is an equidigital number, since it uses as much as digits as its factorization.

56102989824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 56102989824 in words is "fifty-six billion, one hundred two million, nine hundred eighty-nine thousand, eight hundred twenty-four".