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13369897 = 31431287
BaseRepresentation
bin110011000000…
…001000101001
3221011021001101
4303000020221
511410314042
61154321401
7221433202
oct63001051
927137041
1013369897
117602002
124589261
132a016a8
141ac05a9
1512916b7
hexcc0229

13369897 has 4 divisors (see below), whose sum is σ = 13801216. Its totient is φ = 12938580.

The previous prime is 13369879. The next prime is 13369907. The reversal of 13369897 is 79896331.

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-13369897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13369817) 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, 215613 + ... + 215674.

It is an arithmetic number, because the mean of its divisors is an integer number (3450304).

Almost surely, 213369897 is an apocalyptic number.

It is an amenable number.

13369897 is a deficient number, since it is larger than the sum of its proper divisors (431319).

13369897 is an equidigital number, since it uses as much as digits as its factorization.

13369897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431318.

The product of its digits is 244944, while the sum is 46.

The square root of 13369897 is about 3656.4869752264. The cubic root of 13369897 is about 237.3427775685.

The spelling of 13369897 in words is "thirteen million, three hundred sixty-nine thousand, eight hundred ninety-seven".

Divisors: 1 31 431287 13369897