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13683817 = 71979923
BaseRepresentation
bin110100001100…
…110001101001
3221202012200001
4310030301221
512000340232
61205143001
7224211340
oct64146151
927665601
1013683817
1177a6944
1246baa61
132ab1544
141b62b57
1513046e7
hexd0cc69

13683817 has 8 divisors (see below), whose sum is σ = 15719616. Its totient is φ = 11668272.

The previous prime is 13683809. The next prime is 13683823. The reversal of 13683817 is 71838631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13683817 - 23 = 13683809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13683877) 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 7 ways as a sum of consecutive naturals, for example, 3583 + ... + 6340.

It is an arithmetic number, because the mean of its divisors is an integer number (1964952).

Almost surely, 213683817 is an apocalyptic number.

It is an amenable number.

13683817 is a deficient number, since it is larger than the sum of its proper divisors (2035799).

13683817 is an equidigital number, since it uses as much as digits as its factorization.

13683817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10127.

The product of its digits is 24192, while the sum is 37.

The square root of 13683817 is about 3699.1643650965. The cubic root of 13683817 is about 239.1859980786.

The spelling of 13683817 in words is "thirteen million, six hundred eighty-three thousand, eight hundred seventeen".

Divisors: 1 7 197 1379 9923 69461 1954831 13683817