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102115 = 5131571
BaseRepresentation
bin11000111011100011
312012002001
4120323203
511231430
62104431
7603466
oct307343
9165061
10102115
116a7a2
124b117
1337630
14292dd
15203ca
hex18ee3

102115 has 8 divisors (see below), whose sum is σ = 132048. Its totient is φ = 75360.

The previous prime is 102107. The next prime is 102121. The reversal of 102115 is 511201.

It is a happy number.

102115 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 102115 - 23 = 102107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721 + ... + 850.

It is an arithmetic number, because the mean of its divisors is an integer number (16506).

2102115 is an apocalyptic number.

102115 is a deficient number, since it is larger than the sum of its proper divisors (29933).

102115 is a wasteful number, since it uses less digits than its factorization.

102115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 102115 is about 319.5543772193. The cubic root of 102115 is about 46.7408400939.

Adding to 102115 its reverse (511201), we get a palindrome (613316).

The spelling of 102115 in words is "one hundred two thousand, one hundred fifteen".

Divisors: 1 5 13 65 1571 7855 20423 102115