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12830536 = 231603817
BaseRepresentation
bin110000111100…
…011101001000
3220010212012001
4300330131020
511241034121
61135000344
7214025545
oct60743510
926125161
1012830536
117273854
1243690b4
132873044
1419bdbcc
1511d6991
hexc3c748

12830536 has 8 divisors (see below), whose sum is σ = 24057270. Its totient is φ = 6415264.

The previous prime is 12830513. The next prime is 12830537. The reversal of 12830536 is 63503821.

It can be written as a sum of positive squares in only one way, i.e., 10562500 + 2268036 = 3250^2 + 1506^2 .

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801901 + ... + 801916.

Almost surely, 212830536 is an apocalyptic number.

It is an amenable number.

12830536 is a deficient number, since it is larger than the sum of its proper divisors (11226734).

12830536 is a wasteful number, since it uses less digits than its factorization.

12830536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603823 (or 1603819 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12830536 is about 3581.9737575811. The cubic root of 12830536 is about 234.1072875929.

It can be divided in two parts, 12830 and 536, that added together give a triangular number (13366 = T163).

The spelling of 12830536 in words is "twelve million, eight hundred thirty thousand, five hundred thirty-six".

Divisors: 1 2 4 8 1603817 3207634 6415268 12830536