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13793017 = 71970431
BaseRepresentation
bin110100100111…
…011011111001
3221221202110111
4310213123321
512012334032
61211344321
7225144610
oct64473371
927852414
1013793017
117870997
1247520a1
132b1c164
141b90877
151326c47
hexd276f9

13793017 has 4 divisors (see below), whose sum is σ = 15763456. Its totient is φ = 11822580.

The previous prime is 13793011. The next prime is 13793027. The reversal of 13793017 is 71039731.

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 de Polignac number, because none of the positive numbers 2k-13793017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13793017.

It is not an unprimeable number, because it can be changed into a prime (13793011) 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, 985209 + ... + 985222.

It is an arithmetic number, because the mean of its divisors is an integer number (3940864).

Almost surely, 213793017 is an apocalyptic number.

It is an amenable number.

13793017 is a deficient number, since it is larger than the sum of its proper divisors (1970439).

13793017 is an equidigital number, since it uses as much as digits as its factorization.

13793017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970438.

The product of its (nonzero) digits is 3969, while the sum is 31.

The square root of 13793017 is about 3713.8951250675. The cubic root of 13793017 is about 239.8205661127.

The spelling of 13793017 in words is "thirteen million, seven hundred ninety-three thousand, seventeen".

Divisors: 1 7 1970431 13793017