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13969075 = 521573559
BaseRepresentation
bin110101010010…
…011010110011
3222021200222011
4311102122303
512034002300
61215223351
7226510111
oct65223263
928250864
1013969075
11798119a
124817b57
132b81333
141bd8ab1
15135deba
hexd526b3

13969075 has 12 divisors (see below), whose sum is σ = 17436880. Its totient is φ = 11100960.

The previous prime is 13969063. The next prime is 13969079. The reversal of 13969075 is 57096931.

It is not a de Polignac number, because 13969075 - 213 = 13960883 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13969079) 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, 2146 + ... + 5704.

Almost surely, 213969075 is an apocalyptic number.

13969075 is a deficient number, since it is larger than the sum of its proper divisors (3467805).

13969075 is a wasteful number, since it uses less digits than its factorization.

13969075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726 (or 3721 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 13969075 is about 3737.5225751827. The cubic root of 13969075 is about 240.8366345204.

The spelling of 13969075 in words is "thirteen million, nine hundred sixty-nine thousand, seventy-five".

Divisors: 1 5 25 157 785 3559 3925 17795 88975 558763 2793815 13969075