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104508978 = 2372488309
BaseRepresentation
bin1100011101010…
…10111000110010
321021122121100220
412032222320302
5203223241403
614211553510
72406211620
oct616527062
9237577326
10104508978
1153aa1162
122abbb896
1318861c42
14dc46510
159295953
hex63aae32

104508978 has 16 divisors (see below), whose sum is σ = 238877760. Its totient is φ = 29859696.

The previous prime is 104508977. The next prime is 104508983. The reversal of 104508978 is 879805401.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 2488309 = 104508978 / (1 + 0 + 4 + 5 + 0 + 8 + 9 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (104508973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1244113 + ... + 1244196.

It is an arithmetic number, because the mean of its divisors is an integer number (14929860).

Almost surely, 2104508978 is an apocalyptic number.

104508978 is an abundant number, since it is smaller than the sum of its proper divisors (134368782).

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

104508978 is a wasteful number, since it uses less digits than its factorization.

104508978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488321.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 104508978 is about 10222.9632690331. The cubic root of 104508978 is about 471.0328545741.

The spelling of 104508978 in words is "one hundred four million, five hundred eight thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 7 14 21 42 2488309 4976618 7464927 14929854 17418163 34836326 52254489 104508978