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13373317 = 37361441
BaseRepresentation
bin110011000000…
…111110000101
3221011102202001
4303000332011
511410421232
61154345301
7221446156
oct63007605
927142661
1013373317
117604631
12458b231
132a03109
141ac192d
1512926e7
hexcc0f85

13373317 has 4 divisors (see below), whose sum is σ = 13734796. Its totient is φ = 13011840.

The previous prime is 13373303. The next prime is 13373351. The reversal of 13373317 is 71337331.

13373317 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71337331 = 135487487.

It can be written as a sum of positive squares in 2 ways, for example, as 7986276 + 5387041 = 2826^2 + 2321^2 .

It is a cyclic number.

It is not a de Polignac number, because 13373317 - 223 = 4984709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13373377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180684 + ... + 180757.

It is an arithmetic number, because the mean of its divisors is an integer number (3433699).

Almost surely, 213373317 is an apocalyptic number.

It is an amenable number.

13373317 is a deficient number, since it is larger than the sum of its proper divisors (361479).

13373317 is an equidigital number, since it uses as much as digits as its factorization.

13373317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361478.

The product of its digits is 3969, while the sum is 28.

The square root of 13373317 is about 3656.9546073201. The cubic root of 13373317 is about 237.3630131544.

The spelling of 13373317 in words is "thirteen million, three hundred seventy-three thousand, three hundred seventeen".

Divisors: 1 37 361441 13373317