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104909457 = 3331105649
BaseRepresentation
bin1100100000011…
…00101010010001
321022101221201110
412100030222101
5203324100312
614224323533
72412500322
oct620145221
9238357643
10104909457
1154245034
122b1735a9
1318972303
14dd0c449
15932443c
hex640ca91

104909457 has 8 divisors (see below), whose sum is σ = 140303200. Its totient is φ = 69727680.

The previous prime is 104909437. The next prime is 104909473. The reversal of 104909457 is 754909401.

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

It is not a de Polignac number, because 104909457 - 211 = 104907409 is a prime.

It is a super-2 number, since 2×1049094572 = 22011988336069698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104909437) 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, 51832 + ... + 53817.

It is an arithmetic number, because the mean of its divisors is an integer number (17537900).

Almost surely, 2104909457 is an apocalyptic number.

It is an amenable number.

104909457 is a deficient number, since it is larger than the sum of its proper divisors (35393743).

104909457 is a wasteful number, since it uses less digits than its factorization.

104909457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105983.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 104909457 is about 10242.5317670974. The cubic root of 104909457 is about 471.6337545379.

The spelling of 104909457 in words is "one hundred four million, nine hundred nine thousand, four hundred fifty-seven".

Divisors: 1 3 331 993 105649 316947 34969819 104909457