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13969585 = 57399131
BaseRepresentation
bin110101010010…
…100010110001
3222021201200001
4311102202301
512034011320
61215230001
7226511440
oct65224261
928251601
1013969585
117981613
124818301
132b81636
141bd8d57
15135e20a
hexd528b1

13969585 has 8 divisors (see below), whose sum is σ = 19158336. Its totient is φ = 9579120.

The previous prime is 13969583. The next prime is 13969603. The reversal of 13969585 is 58596931.

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

It is not a de Polignac number, because 13969585 - 21 = 13969583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13969583) 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, 199531 + ... + 199600.

It is an arithmetic number, because the mean of its divisors is an integer number (2394792).

Almost surely, 213969585 is an apocalyptic number.

It is an amenable number.

13969585 is a deficient number, since it is larger than the sum of its proper divisors (5188751).

13969585 is an equidigital number, since it uses as much as digits as its factorization.

13969585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399143.

The product of its digits is 291600, while the sum is 46.

The square root of 13969585 is about 3737.5908015726. The cubic root of 13969585 is about 240.8395654037.

The spelling of 13969585 in words is "thirteen million, nine hundred sixty-nine thousand, five hundred eighty-five".

Divisors: 1 5 7 35 399131 1995655 2793917 13969585