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104909456 = 2431257823
BaseRepresentation
bin1100100000011…
…00101010010000
321022101221201102
412100030222100
5203324100311
614224323532
72412500321
oct620145220
9238357642
10104909456
1154245033
122b1735a8
1318972302
14dd0c448
15932443b
hex640ca90

104909456 has 40 divisors (see below), whose sum is σ = 210891264. Its totient is φ = 50503680.

The previous prime is 104909437. The next prime is 104909473. The reversal of 104909456 is 654909401.

It is a super-2 number, since 2×1049094562 = 22011987916431872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127061 + ... + 127883.

Almost surely, 2104909456 is an apocalyptic number.

104909456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104909456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105445632).

104909456 is an abundant number, since it is smaller than the sum of its proper divisors (105981808).

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

104909456 is a wasteful number, since it uses less digits than its factorization.

104909456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 104909456 is about 10242.5317182814. The cubic root of 104909456 is about 471.6337530394.

Subtracting 104909456 from its reverse (654909401), we obtain a palindrome (549999945).

The spelling of 104909456 in words is "one hundred four million, nine hundred nine thousand, four hundred fifty-six".

Divisors: 1 2 4 8 16 31 62 124 248 257 496 514 823 1028 1646 2056 3292 4112 6584 7967 13168 15934 25513 31868 51026 63736 102052 127472 204104 211511 408208 423022 846044 1692088 3384176 6556841 13113682 26227364 52454728 104909456