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12490539 = 312593307
BaseRepresentation
bin101111101001…
…011100101011
3212111120210120
4233221130223
511144144124
61123414323
7211111365
oct57513453
925446716
1012490539
117061366
1242243a3
132784369
141931d35
15116ad79
hexbe972b

12490539 has 8 divisors (see below), whose sum is σ = 16672320. Its totient is φ = 8317896.

The previous prime is 12490537. The next prime is 12490547. The reversal of 12490539 is 93509421.

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

It is not a de Polignac number, because 12490539 - 21 = 12490537 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12490537) 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, 2124 + ... + 5430.

It is an arithmetic number, because the mean of its divisors is an integer number (2084040).

Almost surely, 212490539 is an apocalyptic number.

12490539 is a deficient number, since it is larger than the sum of its proper divisors (4181781).

12490539 is a wasteful number, since it uses less digits than its factorization.

12490539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 12490539 is about 3534.1956652115. The cubic root of 12490539 is about 232.0208748062.

The spelling of 12490539 in words is "twelve million, four hundred ninety thousand, five hundred thirty-nine".

Divisors: 1 3 1259 3307 3777 9921 4163513 12490539