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104557947 = 31331197439
BaseRepresentation
bin1100011101101…
…10110101111011
321021202002112120
412032312311323
5203231323242
614213012323
72406504444
oct616666573
9237662476
10104557947
1154024a2a
122b0240a3
131887b310
14dc5a2cb
1592a51ec
hex63b6d7b

104557947 has 32 divisors (see below), whose sum is σ = 156119040. Its totient is φ = 61810560.

The previous prime is 104557909. The next prime is 104557951. The reversal of 104557947 is 749755401.

It is a happy number.

It is not a de Polignac number, because 104557947 - 210 = 104556923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104557899 and 104557908.

It is not an unprimeable number, because it can be changed into a prime (104557907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237954 + ... + 238392.

It is an arithmetic number, because the mean of its divisors is an integer number (4878720).

Almost surely, 2104557947 is an apocalyptic number.

104557947 is a deficient number, since it is larger than the sum of its proper divisors (51561093).

104557947 is a wasteful number, since it uses less digits than its factorization.

104557947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 104557947 is about 10225.3580377413. The cubic root of 104557947 is about 471.1064125485.

The spelling of 104557947 in words is "one hundred four million, five hundred fifty-seven thousand, nine hundred forty-seven".

Divisors: 1 3 13 31 39 93 197 403 439 591 1209 1317 2561 5707 6107 7683 13609 17121 18321 40827 79391 86483 176917 238173 259449 530751 1124279 2680973 3372837 8042919 34852649 104557947