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12954389 = 711811567
BaseRepresentation
bin110001011010…
…101100010101
3220101011002012
4301122230111
511304020024
61141354005
7215052620
oct61325425
926334065
1012954389
117348908
124408905
1328b7526
141a12db7
15120d50e
hexc5ab15

12954389 has 8 divisors (see below), whose sum is σ = 14827008. Its totient is φ = 11087280.

The previous prime is 12954379. The next prime is 12954407. The reversal of 12954389 is 98345921.

12954389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12954389 - 28 = 12954133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12954379) 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, 7484 + ... + 9050.

It is an arithmetic number, because the mean of its divisors is an integer number (1853376).

Almost surely, 212954389 is an apocalyptic number.

It is an amenable number.

12954389 is a deficient number, since it is larger than the sum of its proper divisors (1872619).

12954389 is a wasteful number, since it uses less digits than its factorization.

12954389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755.

The product of its digits is 77760, while the sum is 41.

The square root of 12954389 is about 3599.2206100766. The cubic root of 12954389 is about 234.8581549313.

The spelling of 12954389 in words is "twelve million, nine hundred fifty-four thousand, three hundred eighty-nine".

Divisors: 1 7 1181 1567 8267 10969 1850627 12954389