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68163 = 322721
BaseRepresentation
bin10000101001000011
310110111120
4100221003
54140123
61243323
7402504
oct205103
9113446
1068163
1147237
1233543
1325044
141abab
15152e3
hex10a43

68163 has 4 divisors (see below), whose sum is σ = 90888. Its totient is φ = 45440.

The previous prime is 68161. The next prime is 68171. The reversal of 68163 is 36186.

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 68163 - 21 = 68161 is a prime.

It is a D-number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (68161) 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, 11358 + ... + 11363.

It is an arithmetic number, because the mean of its divisors is an integer number (22722).

268163 is an apocalyptic number.

68163 is a deficient number, since it is larger than the sum of its proper divisors (22725).

68163 is a wasteful number, since it uses less digits than its factorization.

68163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22724.

The product of its digits is 864, while the sum is 24.

The square root of 68163 is about 261.0804473721. The cubic root of 68163 is about 40.8491382198.

It can be divided in two parts, 68 and 163, that added together give a triangular number (231 = T21).

The spelling of 68163 in words is "sixty-eight thousand, one hundred sixty-three".

Divisors: 1 3 22721 68163