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168956 = 2242239
BaseRepresentation
bin101001001111111100
322120202122
4221033330
520401311
63342112
71302404
oct511774
9276678
10168956
11105a37
1281938
135bb98
1445804
15350db
hex293fc

168956 has 6 divisors (see below), whose sum is σ = 295680. Its totient is φ = 84476.

The previous prime is 168943. The next prime is 168977. The reversal of 168956 is 659861.

168956 is nontrivially palindromic in base 3.

It is a super-2 number, since 2×1689562 = 57092259872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 21116 + ... + 21123.

It is an arithmetic number, because the mean of its divisors is an integer number (49280).

2168956 is an apocalyptic number.

It is an amenable number.

168956 is a deficient number, since it is larger than the sum of its proper divisors (126724).

168956 is a wasteful number, since it uses less digits than its factorization.

168956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42243 (or 42241 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 168956 is about 411.0425768701. The cubic root of 168956 is about 55.2829495726.

Subtracting from 168956 its sum of digits (35), we obtain a square (168921 = 4112).

The spelling of 168956 in words is "one hundred sixty-eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 42239 84478 168956