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13426269 = 34475423
BaseRepresentation
bin110011001101…
…111001011101
3221021010101020
4303031321131
511414120034
61155434353
7222056433
oct63157135
927233336
1013426269
11764039a
1245b59b9
132a2124c
141ad6d53
1512a3249
hexccde5d

13426269 has 4 divisors (see below), whose sum is σ = 17901696. Its totient is φ = 8950844.

The previous prime is 13426267. The next prime is 13426279. The reversal of 13426269 is 96262431.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96262431 = 332087477.

It is a cyclic number.

It is not a de Polignac number, because 13426269 - 21 = 13426267 is a prime.

It is a super-2 number, since 2×134262692 = 360529398520722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13426261) 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, 2237709 + ... + 2237714.

It is an arithmetic number, because the mean of its divisors is an integer number (4475424).

Almost surely, 213426269 is an apocalyptic number.

It is an amenable number.

13426269 is a deficient number, since it is larger than the sum of its proper divisors (4475427).

13426269 is an equidigital number, since it uses as much as digits as its factorization.

13426269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475426.

The product of its digits is 15552, while the sum is 33.

The square root of 13426269 is about 3664.1873587468. The cubic root of 13426269 is about 237.6758822747.

It can be divided in two parts, 13426 and 269, that added together give a triangular number (13695 = T165).

The spelling of 13426269 in words is "thirteen million, four hundred twenty-six thousand, two hundred sixty-nine".

Divisors: 1 3 4475423 13426269