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13397617 = 73223823
BaseRepresentation
bin110011000110…
…111001110001
3221012200002001
4303012321301
511412210432
61155054001
7221610052
oct63067161
927180061
1013397617
117620912
1245a1301
132a111ac
141aca729
1512999e7
hexcc6e71

13397617 has 8 divisors (see below), whose sum is σ = 13658624. Its totient is φ = 13138848.

The previous prime is 13397609. The next prime is 13397621. The reversal of 13397617 is 71679331.

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 13397617 - 23 = 13397609 is a prime.

It is a super-2 number, since 2×133976172 = 358992282557378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13397647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15868 + ... + 16690.

It is an arithmetic number, because the mean of its divisors is an integer number (1707328).

Almost surely, 213397617 is an apocalyptic number.

It is an amenable number.

13397617 is a deficient number, since it is larger than the sum of its proper divisors (261007).

13397617 is an equidigital number, since it uses as much as digits as its factorization.

13397617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its digits is 23814, while the sum is 37.

The square root of 13397617 is about 3660.2755360765. The cubic root of 13397617 is about 237.5066930708.

The spelling of 13397617 in words is "thirteen million, three hundred ninety-seven thousand, six hundred seventeen".

Divisors: 1 73 223 823 16279 60079 183529 13397617