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12755613 = 3132139181
BaseRepresentation
bin110000101010…
…001010011101
3220000001102010
4300222022131
511231134423
61133221433
7213264243
oct60521235
926001363
1012755613
117222532
124331879
132847c00
1419a0793
1511be693
hexc2a29d

12755613 has 24 divisors (see below), whose sum is σ = 18651360. Its totient is φ = 7750080.

The previous prime is 12755609. The next prime is 12755651. The reversal of 12755613 is 31655721.

It is not a de Polignac number, because 12755613 - 22 = 12755609 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is the 3572-nd Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12755683) by changing a digit.

It is a nontrivial repunit in base 3571.

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 in 23 ways as a sum of consecutive naturals, for example, 70383 + ... + 70563.

It is an arithmetic number, because the mean of its divisors is an integer number (777140).

Almost surely, 212755613 is an apocalyptic number.

12755613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12755613 is a deficient number, since it is larger than the sum of its proper divisors (5895747).

12755613 is a wasteful number, since it uses less digits than its factorization.

12755613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 336 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 12755613 is about 3571.5001049979. The cubic root of 12755613 is about 233.6507134551.

The spelling of 12755613 in words is "twelve million, seven hundred fifty-five thousand, six hundred thirteen".

Divisors: 1 3 13 39 139 169 181 417 507 543 1807 2353 5421 7059 23491 25159 30589 70473 75477 91767 327067 981201 4251871 12755613