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104897784888 = 2333132231031213
BaseRepresentation
bin110000110110001100…
…1010010110000111000
3101000202111200121001000
41201230121102300320
53204312313104023
6120104523325000
710402315313511
oct1415431226070
9330674617030
10104897784888
114053a079406
12183b6080760
139b79430500
145111715a08
152ade200243
hex186c652c38

104897784888 has 384 divisors, whose sum is σ = 332709811200. Its totient is φ = 30547984896.

The previous prime is 104897784847. The next prime is 104897784889. The reversal of 104897784888 is 888487798401.

104897784888 is a `hidden beast` number, since 10 + 48 + 97 + 7 + 8 + 488 + 8 = 666.

It is a super-2 number, since 2×1048977848882 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104897784889) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 86477370 + ... + 86478582.

It is an arithmetic number, because the mean of its divisors is an integer number (866431800).

Almost surely, 2104897784888 is an apocalyptic number.

104897784888 is a gapful number since it is divisible by the number (18) 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 104897784888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166354905600).

104897784888 is an abundant number, since it is smaller than the sum of its proper divisors (227812026312).

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

104897784888 is a wasteful number, since it uses less digits than its factorization.

104897784888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 231211008, while the sum is 72.

The spelling of 104897784888 in words is "one hundred four billion, eight hundred ninety-seven million, seven hundred eighty-four thousand, eight hundred eighty-eight".