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12492808 = 231561601
BaseRepresentation
bin101111101010…
…000000001000
3212111200220121
4233222000020
511144232213
61123433024
7211121116
oct57520010
925450817
1012492808
117063039
124225774
1327853c3
141932ab6
15116b88d
hexbea008

12492808 has 8 divisors (see below), whose sum is σ = 23424030. Its totient is φ = 6246400.

The previous prime is 12492803. The next prime is 12492811. The reversal of 12492808 is 80829421.

It can be written as a sum of positive squares in only one way, i.e., 6646084 + 5846724 = 2578^2 + 2418^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12492803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780793 + ... + 780808.

Almost surely, 212492808 is an apocalyptic number.

It is an amenable number.

12492808 is a deficient number, since it is larger than the sum of its proper divisors (10931222).

12492808 is a wasteful number, since it uses less digits than its factorization.

12492808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561607 (or 1561603 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 12492808 is about 3534.5166571966. The cubic root of 12492808 is about 232.0349233990.

The spelling of 12492808 in words is "twelve million, four hundred ninety-two thousand, eight hundred eight".

Divisors: 1 2 4 8 1561601 3123202 6246404 12492808