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12989829 = 313133053
BaseRepresentation
bin110001100011…
…010110000101
3220102221200210
4301203112011
511311133304
61142230033
7215261136
oct61432605
926387623
1012989829
1173724a6
124425319
1328ca6b8
141a21c8d
151218c89
hexc63585

12989829 has 8 divisors (see below), whose sum is σ = 17452512. Its totient is φ = 8593520.

The previous prime is 12989807. The next prime is 12989861. The reversal of 12989829 is 92898921.

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

It is a cyclic number.

It is not a de Polignac number, because 12989829 - 211 = 12987781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12989329) 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 in 7 ways as a sum of consecutive naturals, for example, 16134 + ... + 16919.

It is an arithmetic number, because the mean of its divisors is an integer number (2181564).

Almost surely, 212989829 is an apocalyptic number.

It is an amenable number.

12989829 is a deficient number, since it is larger than the sum of its proper divisors (4462683).

12989829 is a wasteful number, since it uses less digits than its factorization.

12989829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33187.

The product of its digits is 186624, while the sum is 48.

The square root of 12989829 is about 3604.1405355507. The cubic root of 12989829 is about 235.0721311699.

The spelling of 12989829 in words is "twelve million, nine hundred eighty-nine thousand, eight hundred twenty-nine".

Divisors: 1 3 131 393 33053 99159 4329943 12989829