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13313297 = 23578839
BaseRepresentation
bin110010110010…
…010100010001
3221001101102002
4302302110101
511402011142
61153203345
7221106164
oct62622421
927041362
1013313297
117573528
124560555
1329b19ba
141aa7adb
15127ea32
hexcb2511

13313297 has 4 divisors (see below), whose sum is σ = 13892160. Its totient is φ = 12734436.

The previous prime is 13313269. The next prime is 13313309. The reversal of 13313297 is 79231331.

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: 79231331 = 471685773.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13313297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13313207) 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, 289397 + ... + 289442.

It is an arithmetic number, because the mean of its divisors is an integer number (3473040).

Almost surely, 213313297 is an apocalyptic number.

It is an amenable number.

13313297 is a deficient number, since it is larger than the sum of its proper divisors (578863).

13313297 is an equidigital number, since it uses as much as digits as its factorization.

13313297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578862.

The product of its digits is 3402, while the sum is 29.

The square root of 13313297 is about 3648.7390972773. The cubic root of 13313297 is about 237.0073822527.

The spelling of 13313297 in words is "thirteen million, three hundred thirteen thousand, two hundred ninety-seven".

Divisors: 1 23 578839 13313297