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12908269 = 1110311393
BaseRepresentation
bin110001001111…
…011011101101
3220021210211001
4301033123231
511301031034
61140400301
7214501303
oct61173355
926253731
1012908269
1173171a0
1243a6091
13289c53a
141a00273
1511eea14
hexc4f6ed

12908269 has 8 divisors (see below), whose sum is σ = 14219712. Its totient is φ = 11619840.

The previous prime is 12908261. The next prime is 12908279. The reversal of 12908269 is 96280921.

12908269 is digitally balanced in base 3, 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 12908269 - 23 = 12908261 is a prime.

It is a super-2 number, since 2×129082692 = 333246817152722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12908261) 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, 4564 + ... + 6829.

It is an arithmetic number, because the mean of its divisors is an integer number (1777464).

Almost surely, 212908269 is an apocalyptic number.

It is an amenable number.

12908269 is a deficient number, since it is larger than the sum of its proper divisors (1311443).

12908269 is a wasteful number, since it uses less digits than its factorization.

12908269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11507.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 12908269 is about 3592.8079547897. The cubic root of 12908269 is about 234.5791108220.

It can be divided in two parts, 1290 and 8269, that added together give a palindrome (9559).

The spelling of 12908269 in words is "twelve million, nine hundred eight thousand, two hundred sixty-nine".

Divisors: 1 11 103 1133 11393 125323 1173479 12908269