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102887 = 137751
BaseRepresentation
bin11001000111100111
312020010122
4121013213
511243022
62112155
7605651
oct310747
9166118
10102887
1170334
124b65b
1337aa5
14296d1
1520742
hex191e7

102887 has 4 divisors (see below), whose sum is σ = 103776. Its totient is φ = 102000.

The previous prime is 102881. The next prime is 102911. The reversal of 102887 is 788201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 788201 = 5031567.

It is a cyclic number.

It is not a de Polignac number, because 102887 - 24 = 102871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 102887.

It is not an unprimeable number, because it can be changed into a prime (102881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 512.

It is an arithmetic number, because the mean of its divisors is an integer number (25944).

2102887 is an apocalyptic number.

102887 is a deficient number, since it is larger than the sum of its proper divisors (889).

102887 is an equidigital number, since it uses as much as digits as its factorization.

102887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 102887 is about 320.7600349171. The cubic root of 102887 is about 46.8583330375.

It can be divided in two parts, 102 and 887, that added together give a palindrome (989).

The spelling of 102887 in words is "one hundred two thousand, eight hundred eighty-seven".

Divisors: 1 137 751 102887