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15087 = 347107
BaseRepresentation
bin11101011101111
3202200210
43223233
5440322
6153503
761662
oct35357
922623
1015087
1110376
128893
136b37
1456d9
15470c
hex3aef

15087 has 8 divisors (see below), whose sum is σ = 20736. Its totient is φ = 9752.

The previous prime is 15083. The next prime is 15091. The reversal of 15087 is 78051.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (15083) and next prime (15091).

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 15087 - 22 = 15083 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88 + ... + 194.

It is an arithmetic number, because the mean of its divisors is an integer number (2592).

215087 is an apocalyptic number.

15087 is a deficient number, since it is larger than the sum of its proper divisors (5649).

15087 is a wasteful number, since it uses less digits than its factorization.

15087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 15087 is about 122.8291496348. The cubic root of 15087 is about 24.7097089578.

The spelling of 15087 in words is "fifteen thousand, eighty-seven".

Divisors: 1 3 47 107 141 321 5029 15087