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13312297 = 67431461
BaseRepresentation
bin110010110010…
…000100101001
3221001100001001
4302302010221
511401443142
61153155001
7221103235
oct62620451
927040031
1013312297
1175727a9
12455ba61
1329b13cb
141aa75c5
15127e5b7
hexcb2129

13312297 has 8 divisors (see below), whose sum is σ = 13571712. Its totient is φ = 13054800.

The previous prime is 13312283. The next prime is 13312303. The reversal of 13312297 is 79221331.

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 13312297 - 215 = 13279529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13316297) 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, 28647 + ... + 29107.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 213312297 is an apocalyptic number.

It is an amenable number.

13312297 is a deficient number, since it is larger than the sum of its proper divisors (259415).

13312297 is an equidigital number, since it uses as much as digits as its factorization.

13312297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959.

The product of its digits is 2268, while the sum is 28.

The square root of 13312297 is about 3648.6020610639. The cubic root of 13312297 is about 237.0014480022.

The spelling of 13312297 in words is "thirteen million, three hundred twelve thousand, two hundred ninety-seven".

Divisors: 1 67 431 461 28877 30887 198691 13312297