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104642892 = 22322906747
BaseRepresentation
bin1100011110010…
…11100101001100
321021220102001200
412033023211030
5203242033032
614214505500
72410310214
oct617134514
9237812050
10104642892
1154082832
122b065290
13188aab93
14dc7d244
1592c047c
hex63cb94c

104642892 has 18 divisors (see below), whose sum is σ = 264514068. Its totient is φ = 34880952.

The previous prime is 104642891. The next prime is 104642911. The reversal of 104642892 is 298246401.

104642892 is a `hidden beast` number, since 1 + 0 + 4 + 642 + 8 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1046428922 = 21900269692247328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2906747 = 104642892 / (1 + 0 + 4 + 6 + 4 + 2 + 8 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (104642891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1453338 + ... + 1453409.

It is an arithmetic number, because the mean of its divisors is an integer number (14695226).

Almost surely, 2104642892 is an apocalyptic number.

104642892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

104642892 is an abundant number, since it is smaller than the sum of its proper divisors (159871176).

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

104642892 is a wasteful number, since it uses less digits than its factorization.

104642892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906757 (or 2906752 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 104642892 is about 10229.5108387449. The cubic root of 104642892 is about 471.2339568212.

The spelling of 104642892 in words is "one hundred four million, six hundred forty-two thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 2906747 5813494 8720241 11626988 17440482 26160723 34880964 52321446 104642892