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12989067 = 37313971
BaseRepresentation
bin110001100011…
…001010001011
3220102220122120
4301203022023
511311122232
61142222323
7215256000
oct61431213
926386576
1012989067
117371973
1244249a3
1328ca250
141a218a7
15121892c
hexc6328b

12989067 has 32 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 6844320.

The previous prime is 12989063. The next prime is 12989069. The reversal of 12989067 is 76098921.

It is not a de Polignac number, because 12989067 - 22 = 12989063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12989063) 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 31 ways as a sum of consecutive naturals, for example, 12892 + ... + 13862.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 212989067 is an apocalyptic number.

12989067 is a deficient number, since it is larger than the sum of its proper divisors (8783733).

12989067 is an equidigital number, since it uses as much as digits as its factorization.

12989067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 12989067 is about 3604.0348222513. The cubic root of 12989067 is about 235.0675345360.

The spelling of 12989067 in words is "twelve million, nine hundred eighty-nine thousand, sixty-seven".

Divisors: 1 3 7 13 21 39 49 91 147 273 343 637 971 1029 1911 2913 4459 6797 12623 13377 20391 37869 47579 88361 142737 265083 333053 618527 999159 1855581 4329689 12989067