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104664287 = 7136731709
BaseRepresentation
bin1100011110100…
…00110011011111
321021221111102002
412033100303133
5203243224122
614215152515
72410426460
oct617206337
9237844362
10104664287
1154097912
122b07573b
13188b7840
14dc86d67
1592c6992
hex63d0cdf

104664287 has 16 divisors (see below), whose sum is σ = 129084480. Its totient is φ = 82639872.

The previous prime is 104664187. The next prime is 104664311. The reversal of 104664287 is 782466401.

It is not a de Polignac number, because 104664287 - 28 = 104664031 is a prime.

It is a super-2 number, since 2×1046642872 = 21909225946436738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104664287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104664187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60389 + ... + 62097.

It is an arithmetic number, because the mean of its divisors is an integer number (8067780).

Almost surely, 2104664287 is an apocalyptic number.

104664287 is a deficient number, since it is larger than the sum of its proper divisors (24420193).

104664287 is a wasteful number, since it uses less digits than its factorization.

104664287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 104664287 is about 10230.5565342263. The cubic root of 104664287 is about 471.2660703688.

The spelling of 104664287 in words is "one hundred four million, six hundred sixty-four thousand, two hundred eighty-seven".

Divisors: 1 7 13 91 673 1709 4711 8749 11963 22217 61243 155519 1150157 8051099 14952041 104664287