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12898269 = 321519491
BaseRepresentation
bin110001001100…
…111111011101
3220021022002200
4301030333131
511300221034
61140242113
7214430166
oct61147735
926238080
1012898269
11730a72a
1243a0339
132897b17
1419da76d
1511eba99
hexc4cfdd

12898269 has 12 divisors (see below), whose sum is σ = 18756192. Its totient is φ = 8541000.

The previous prime is 12898261. The next prime is 12898273. The reversal of 12898269 is 96289821.

It is not a de Polignac number, because 12898269 - 23 = 12898261 is a prime.

It is a super-2 number, since 2×128982692 = 332730686392722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12898261) 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, 3387 + ... + 6104.

It is an arithmetic number, because the mean of its divisors is an integer number (1563016).

Almost surely, 212898269 is an apocalyptic number.

It is an amenable number.

12898269 is a deficient number, since it is larger than the sum of its proper divisors (5857923).

12898269 is a wasteful number, since it uses less digits than its factorization.

12898269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648 (or 9645 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 12898269 is about 3591.4160160026. The cubic root of 12898269 is about 234.5185192449.

The spelling of 12898269 in words is "twelve million, eight hundred ninety-eight thousand, two hundred sixty-nine".

Divisors: 1 3 9 151 453 1359 9491 28473 85419 1433141 4299423 12898269