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12830539 = 14986111
BaseRepresentation
bin110000111100…
…011101001011
3220010212012011
4300330131023
511241034124
61135000351
7214025551
oct60743513
926125164
1012830539
117273857
1243690b7
132873047
1419bdbd1
1511d6994
hexc3c74b

12830539 has 4 divisors (see below), whose sum is σ = 12916800. Its totient is φ = 12744280.

The previous prime is 12830537. The next prime is 12830551. The reversal of 12830539 is 93503821.

It is a happy number.

12830539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12830539 - 21 = 12830537 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12830539.

It is not an unprimeable number, because it can be changed into a prime (12830537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42907 + ... + 43204.

It is an arithmetic number, because the mean of its divisors is an integer number (3229200).

Almost surely, 212830539 is an apocalyptic number.

12830539 is a deficient number, since it is larger than the sum of its proper divisors (86261).

12830539 is an equidigital number, since it uses as much as digits as its factorization.

12830539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86260.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 12830539 is about 3581.9741763447. The cubic root of 12830539 is about 234.1073058390.

The spelling of 12830539 in words is "twelve million, eight hundred thirty thousand, five hundred thirty-nine".

Divisors: 1 149 86111 12830539