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12590389 = 72716637
BaseRepresentation
bin110000000001…
…110100110101
3212200122202201
4300001310311
511210343024
61125504501
7212005450
oct60016465
925618681
1012590389
11711a389
124272131
1327ba946
14195a497
15118a744
hexc01d35

12590389 has 8 divisors (see below), whose sum is σ = 14444288. Its totient is φ = 10750320.

The previous prime is 12590329. The next prime is 12590401. The reversal of 12590389 is 98309521.

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

It is not a de Polignac number, because 12590389 - 27 = 12590261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12590329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (1805536).

Almost surely, 212590389 is an apocalyptic number.

12590389 is the 1897-th nonagonal number.

It is an amenable number.

12590389 is a deficient number, since it is larger than the sum of its proper divisors (1853899).

12590389 is an equidigital number, since it uses as much as digits as its factorization.

12590389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 12590389 is about 3548.2938153428. The cubic root of 12590389 is about 232.6374968106.

The spelling of 12590389 in words is "twelve million, five hundred ninety thousand, three hundred eighty-nine".

Divisors: 1 7 271 1897 6637 46459 1798627 12590389