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13078871 = 133727191
BaseRepresentation
bin110001111001…
…000101010111
3220121110211122
4301321011113
511322010441
61144154155
7216111551
oct61710527
926543748
1013078871
117423393
12446895b
13292c0a0
141a464d1
15123534b
hexc79157

13078871 has 8 divisors (see below), whose sum is σ = 14466144. Its totient is φ = 11746080.

The previous prime is 13078867. The next prime is 13078873. The reversal of 13078871 is 17887031.

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

It is a cyclic number.

It is not a de Polignac number, because 13078871 - 22 = 13078867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13078873) 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 7 ways as a sum of consecutive naturals, for example, 13115 + ... + 14076.

It is an arithmetic number, because the mean of its divisors is an integer number (1808268).

Almost surely, 213078871 is an apocalyptic number.

13078871 is a deficient number, since it is larger than the sum of its proper divisors (1387273).

13078871 is a wasteful number, since it uses less digits than its factorization.

13078871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27241.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 13078871 is about 3616.4721760301. The cubic root of 13078871 is about 235.6080285956.

The spelling of 13078871 in words is "thirteen million, seventy-eight thousand, eight hundred seventy-one".

Divisors: 1 13 37 481 27191 353483 1006067 13078871