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13950865 = 54168053
BaseRepresentation
bin110101001101…
…111110010001
3222020202222201
4311031332101
512032411430
61215003201
7226403035
oct65157621
928222881
1013950865
117969545
124809501
132b75c66
141bd21c5
1513588ca
hexd4df91

13950865 has 8 divisors (see below), whose sum is σ = 17149608. Its totient is φ = 10888320.

The previous prime is 13950851. The next prime is 13950901. The reversal of 13950865 is 56805931.

It can be written as a sum of positive squares in 4 ways, for example, as 201601 + 13749264 = 449^2 + 3708^2 .

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

It is not a de Polignac number, because 13950865 - 27 = 13950737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33822 + ... + 34231.

It is an arithmetic number, because the mean of its divisors is an integer number (2143701).

Almost surely, 213950865 is an apocalyptic number.

It is an amenable number.

13950865 is a deficient number, since it is larger than the sum of its proper divisors (3198743).

13950865 is an equidigital number, since it uses as much as digits as its factorization.

13950865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68099.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 13950865 is about 3735.0856750549. The cubic root of 13950865 is about 240.7319379629.

The spelling of 13950865 in words is "thirteen million, nine hundred fifty thousand, eight hundred sixty-five".

Divisors: 1 5 41 205 68053 340265 2790173 13950865