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13975078 = 2133471549
BaseRepresentation
bin110101010011…
…111000100110
3222022000012111
4311103320212
512034200303
61215311234
7226533445
oct65237046
928260174
1013975078
117985757
12481b51a
132b83ca0
141bdad5c
151360b6d
hexd53e26

13975078 has 16 divisors (see below), whose sum is σ = 22654800. Its totient is φ = 6427296.

The previous prime is 13975063. The next prime is 13975097. The reversal of 13975078 is 87057931.

It is a self number, because there is not a number n which added to its sum of digits gives 13975078.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8248 + ... + 9796.

It is an arithmetic number, because the mean of its divisors is an integer number (1415925).

Almost surely, 213975078 is an apocalyptic number.

13975078 is a deficient number, since it is larger than the sum of its proper divisors (8679722).

13975078 is a wasteful number, since it uses less digits than its factorization.

13975078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 13975078 is about 3738.3255609965. The cubic root of 13975078 is about 240.8711282209.

The spelling of 13975078 in words is "thirteen million, nine hundred seventy-five thousand, seventy-eight".

Divisors: 1 2 13 26 347 694 1549 3098 4511 9022 20137 40274 537503 1075006 6987539 13975078