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116887 = 179653
BaseRepresentation
bin11100100010010111
312221100011
4130202113
512220022
62301051
7664531
oct344227
9187304
10116887
117a901
1257787
1341284
1430851
1524977
hex1c897

116887 has 4 divisors (see below), whose sum is σ = 117720. Its totient is φ = 116056.

The previous prime is 116881. The next prime is 116903. The reversal of 116887 is 788611.

It can be divided in two parts, 11 and 6887, that multiplied together give a palindrome (75757).

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: 788611 = 1575023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-116887 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a pancake number, because a pancake can be divided into 116887 parts by 483 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116881) 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, 148 + ... + 505.

It is an arithmetic number, because the mean of its divisors is an integer number (29430).

2116887 is an apocalyptic number.

116887 is a deficient number, since it is larger than the sum of its proper divisors (833).

116887 is an equidigital number, since it uses as much as digits as its factorization.

116887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832.

The product of its digits is 2688, while the sum is 31.

The square root of 116887 is about 341.8874083671. The cubic root of 116887 is about 48.8939815249.

The spelling of 116887 in words is "one hundred sixteen thousand, eight hundred eighty-seven".

Divisors: 1 179 653 116887