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104047978 = 2101515089
BaseRepresentation
bin1100011001110…
…10010101101010
321020210011222211
412030322111222
5203114013403
614154035334
72402251606
oct614722552
9236704884
10104047978
1153806871
122aa18b4a
1318730168
14db66506
15920406d
hex633a56a

104047978 has 8 divisors (see below), whose sum is σ = 157617540. Its totient is φ = 51508800.

The previous prime is 104047967. The next prime is 104047981. The reversal of 104047978 is 879740401.

It can be written as a sum of positive squares in 2 ways, for example, as 103978809 + 69169 = 10197^2 + 263^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 104047978.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257343 + ... + 257746.

Almost surely, 2104047978 is an apocalyptic number.

104047978 is a deficient number, since it is larger than the sum of its proper divisors (53569562).

104047978 is a wasteful number, since it uses less digits than its factorization.

104047978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515192.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 104047978 is about 10200.3910709345. The cubic root of 104047978 is about 470.3392420264.

The spelling of 104047978 in words is "one hundred four million, forty-seven thousand, nine hundred seventy-eight".

Divisors: 1 2 101 202 515089 1030178 52023989 104047978