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116891 = 412851
BaseRepresentation
bin11100100010011011
312221100022
4130202123
512220031
62301055
7664535
oct344233
9187308
10116891
117a905
125778b
1341288
1430855
152497b
hex1c89b

116891 has 4 divisors (see below), whose sum is σ = 119784. Its totient is φ = 114000.

The previous prime is 116881. The next prime is 116903. The reversal of 116891 is 198611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116891 - 26 = 116827 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 116891.

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, 1385 + ... + 1466.

It is an arithmetic number, because the mean of its divisors is an integer number (29946).

2116891 is an apocalyptic number.

116891 is a deficient number, since it is larger than the sum of its proper divisors (2893).

116891 is an equidigital number, since it uses as much as digits as its factorization.

116891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2892.

The product of its digits is 432, while the sum is 26.

The square root of 116891 is about 341.8932581962. The cubic root of 116891 is about 48.8945392536.

The spelling of 116891 in words is "one hundred sixteen thousand, eight hundred ninety-one".

Divisors: 1 41 2851 116891