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161826 = 2373853
BaseRepresentation
bin100111100000100010
322012222120
4213200202
520134301
63245110
71242540
oct474042
9265876
10161826
11100645
1279796
1358872
1442d90
1532e36
hex27822

161826 has 16 divisors (see below), whose sum is σ = 369984. Its totient is φ = 46224.

The previous prime is 161807. The next prime is 161831. The reversal of 161826 is 628161.

It is a junction number, because it is equal to n+sod(n) for n = 161796 and 161805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1885 + ... + 1968.

It is an arithmetic number, because the mean of its divisors is an integer number (23124).

2161826 is an apocalyptic number.

161826 is an abundant number, since it is smaller than the sum of its proper divisors (208158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161826 is a wasteful number, since it uses less digits than its factorization.

161826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865.

The product of its digits is 576, while the sum is 24.

The square root of 161826 is about 402.2760246398. The cubic root of 161826 is about 54.4940935720.

Adding to 161826 its reverse (628161), we get a palindrome (789987).

The spelling of 161826 in words is "one hundred sixty-one thousand, eight hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 3853 7706 11559 23118 26971 53942 80913 161826