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12683369 = 71178639
BaseRepresentation
bin110000011000…
…100001101001
3212212101022102
4300120201221
511221331434
61131503145
7212543516
oct60304151
925771272
1012683369
117183226
1242b7ab5
13282106a
14198230d
1511a807e
hexc18869

12683369 has 4 divisors (see below), whose sum is σ = 12862080. Its totient is φ = 12504660.

The previous prime is 12683357. The next prime is 12683383. The reversal of 12683369 is 96338621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12683369 - 28 = 12683113 is a prime.

It is a super-2 number, since 2×126833692 = 321735698380322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12683329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89249 + ... + 89390.

It is an arithmetic number, because the mean of its divisors is an integer number (3215520).

Almost surely, 212683369 is an apocalyptic number.

It is an amenable number.

12683369 is a deficient number, since it is larger than the sum of its proper divisors (178711).

12683369 is an equidigital number, since it uses as much as digits as its factorization.

12683369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178710.

The product of its digits is 46656, while the sum is 38.

The square root of 12683369 is about 3561.3717862644. The cubic root of 12683369 is about 233.2087686605.

The spelling of 12683369 in words is "twelve million, six hundred eighty-three thousand, three hundred sixty-nine".

Divisors: 1 71 178639 12683369