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13853975 = 523471597
BaseRepresentation
bin110100110110…
…010100010111
3222001212002012
4310312110113
512021311400
61212534435
7225520412
oct64662427
928055065
1013853975
117902773
12478141b
132b40b25
141ba8b79
151339d35
hexd36517

13853975 has 12 divisors (see below), whose sum is σ = 17239224. Its totient is φ = 11044320.

The previous prime is 13853971. The next prime is 13853977. The reversal of 13853975 is 57935831.

It is a happy number.

It is not a de Polignac number, because 13853975 - 22 = 13853971 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13853971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7877 + ... + 9473.

It is an arithmetic number, because the mean of its divisors is an integer number (1436602).

Almost surely, 213853975 is an apocalyptic number.

13853975 is a deficient number, since it is larger than the sum of its proper divisors (3385249).

13853975 is a wasteful number, since it uses less digits than its factorization.

13853975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954 (or 1949 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 13853975 is about 3722.0928252799. The cubic root of 13853975 is about 240.1733412085.

The spelling of 13853975 in words is "thirteen million, eight hundred fifty-three thousand, nine hundred seventy-five".

Divisors: 1 5 25 347 1597 1735 7985 8675 39925 554159 2770795 13853975