Search a number
-
+
92891 = 194889
BaseRepresentation
bin10110101011011011
311201102102
4112223123
510433031
61554015
7534551
oct265333
9151372
1092891
1163877
124590b
1333386
1425bd1
151c7cb
hex16adb

92891 has 4 divisors (see below), whose sum is σ = 97800. Its totient is φ = 87984.

The previous prime is 92867. The next prime is 92893. The reversal of 92891 is 19829.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19829 = 79251.

It is a cyclic number.

It is not a de Polignac number, because 92891 - 210 = 91867 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (92893) 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 3 ways as a sum of consecutive naturals, for example, 2426 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (24450).

292891 is an apocalyptic number.

92891 is a deficient number, since it is larger than the sum of its proper divisors (4909).

92891 is a wasteful number, since it uses less digits than its factorization.

92891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908.

The product of its digits is 1296, while the sum is 29.

The square root of 92891 is about 304.7802487039. The cubic root of 92891 is about 45.2888416331.

It can be divided in two parts, 928 and 91, that multiplied together give a palindrome (84448).

The spelling of 92891 in words is "ninety-two thousand, eight hundred ninety-one".

Divisors: 1 19 4889 92891