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13252769 = 82316103
BaseRepresentation
bin110010100011…
…100010100001
3220221022101022
4302203202201
511343042034
61152015225
7220434545
oct62434241
926838338
1013252769
117532002
124531515
13299029a
141a8da25
15126bb2e
hexca38a1

13252769 has 4 divisors (see below), whose sum is σ = 13269696. Its totient is φ = 13235844.

The previous prime is 13252763. The next prime is 13252777. The reversal of 13252769 is 96725231.

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 a de Polignac number, because none of the positive numbers 2k-13252769 is a prime.

It is a super-2 number, since 2×132527692 = 351271772334722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13252763) 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, 7229 + ... + 8874.

It is an arithmetic number, because the mean of its divisors is an integer number (3317424).

Almost surely, 213252769 is an apocalyptic number.

It is an amenable number.

13252769 is a deficient number, since it is larger than the sum of its proper divisors (16927).

13252769 is an equidigital number, since it uses as much as digits as its factorization.

13252769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16926.

The product of its digits is 22680, while the sum is 35.

The square root of 13252769 is about 3640.4352761723. The cubic root of 13252769 is about 236.6476572269.

The spelling of 13252769 in words is "thirteen million, two hundred fifty-two thousand, seven hundred sixty-nine".

Divisors: 1 823 16103 13252769