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13487079 = 343104551
BaseRepresentation
bin110011011100…
…101111100111
3221101012210110
4303130233213
511423041304
61201024103
7222431634
oct63345747
927335713
1013487079
117682051
124625033
132a42b28
141b1118b
1512b6289
hexcdcbe7

13487079 has 8 divisors (see below), whose sum is σ = 18401152. Its totient is φ = 8782200.

The previous prime is 13487063. The next prime is 13487081. The reversal of 13487079 is 97078431.

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

It is not a de Polignac number, because 13487079 - 24 = 13487063 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 (13487479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52147 + ... + 52404.

It is an arithmetic number, because the mean of its divisors is an integer number (2300144).

Almost surely, 213487079 is an apocalyptic number.

13487079 is a deficient number, since it is larger than the sum of its proper divisors (4914073).

13487079 is a wasteful number, since it uses less digits than its factorization.

13487079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104597.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 13487079 is about 3672.4758678581. The cubic root of 13487079 is about 238.0341675871.

The spelling of 13487079 in words is "thirteen million, four hundred eighty-seven thousand, seventy-nine".

Divisors: 1 3 43 129 104551 313653 4495693 13487079