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12942459 = 329711481
BaseRepresentation
bin110001010111…
…110001111011
3220100112201100
4301113301323
511303124314
61141222443
7215003055
oct61276173
926315640
1012942459
11733a952
124401a23
1328b1c7a
141a0c8d5
151209c09
hexc57c7b

12942459 has 12 divisors (see below), whose sum is σ = 18726552. Its totient is φ = 8613600.

The previous prime is 12942427. The next prime is 12942467. The reversal of 12942459 is 95424921.

It is not a de Polignac number, because 12942459 - 25 = 12942427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12942409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7999 + ... + 9479.

It is an arithmetic number, because the mean of its divisors is an integer number (1560546).

Almost surely, 212942459 is an apocalyptic number.

12942459 is a deficient number, since it is larger than the sum of its proper divisors (5784093).

12942459 is a wasteful number, since it uses less digits than its factorization.

12942459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458 (or 2455 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12942459 is about 3597.5629250925. The cubic root of 12942459 is about 234.7860373314.

The spelling of 12942459 in words is "twelve million, nine hundred forty-two thousand, four hundred fifty-nine".

Divisors: 1 3 9 971 1481 2913 4443 8739 13329 1438051 4314153 12942459