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13085427 = 317256577
BaseRepresentation
bin110001111010…
…101011110011
3220121210211110
4301322223303
511322213202
61144244403
7216136635
oct61725363
926553743
1013085427
117428303
124470703
132932074
141a48a55
15123726c
hexc7aaf3

13085427 has 8 divisors (see below), whose sum is σ = 18473616. Its totient is φ = 8210432.

The previous prime is 13085407. The next prime is 13085431. The reversal of 13085427 is 72458031.

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 13085427 - 26 = 13085363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13085394 and 13085403.

It is not an unprimeable number, because it can be changed into a prime (13085407) 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, 128238 + ... + 128339.

It is an arithmetic number, because the mean of its divisors is an integer number (2309202).

Almost surely, 213085427 is an apocalyptic number.

13085427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13085427 is a deficient number, since it is larger than the sum of its proper divisors (5388189).

13085427 is a wasteful number, since it uses less digits than its factorization.

13085427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256597.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 13085427 is about 3617.3784706608. The cubic root of 13085427 is about 235.6473894909.

The spelling of 13085427 in words is "thirteen million, eighty-five thousand, four hundred twenty-seven".

Divisors: 1 3 17 51 256577 769731 4361809 13085427