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104878426820 = 2255243921341
BaseRepresentation
bin110000110101100111…
…1011100101011000100
3101000201011021002202112
41201223033130223010
53204242334124240
6120102552400152
710401661630136
oct1415317345304
9330634232675
10104878426820
114052a157402
12183ab6a6058
139b7541332b
14510cd17056
152adc679665
hex186b3dcac4

104878426820 has 12 divisors (see below), whose sum is σ = 220244696364. Its totient is φ = 41951370720.

The previous prime is 104878426799. The next prime is 104878426831. The reversal of 104878426820 is 28624878401.

It can be written as a sum of positive squares in 2 ways, for example, as 19577046724 + 85301380096 = 139918^2 + 292064^2 .

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 3 ways as a sum of consecutive naturals, for example, 2621960651 + ... + 2621960690.

It is an arithmetic number, because the mean of its divisors is an integer number (18353724697).

Almost surely, 2104878426820 is an apocalyptic number.

104878426820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104878426820 is an abundant number, since it is smaller than the sum of its proper divisors (115366269544).

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

104878426820 is a wasteful number, since it uses less digits than its factorization.

104878426820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243921350 (or 5243921348 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 50.

The spelling of 104878426820 in words is "one hundred four billion, eight hundred seventy-eight million, four hundred twenty-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 5243921341 10487842682 20975685364 26219606705 52439213410 104878426820