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156920 = 2353923
BaseRepresentation
bin100110010011111000
321222020212
4212103320
520010140
63210252
71222331
oct462370
9258225
10156920
11a7995
1276988
135656a
1441288
1531765
hex264f8

156920 has 16 divisors (see below), whose sum is σ = 353160. Its totient is φ = 62752.

The previous prime is 156913. The next prime is 156941. The reversal of 156920 is 29651.

156920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

156920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922 + ... + 2001.

2156920 is an apocalyptic number.

156920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156920 is an abundant number, since it is smaller than the sum of its proper divisors (196240).

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

156920 is a wasteful number, since it uses less digits than its factorization.

156920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934 (or 3930 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 156920 is about 396.1312913669. The cubic root of 156920 is about 53.9377426077.

The spelling of 156920 in words is "one hundred fifty-six thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3923 7846 15692 19615 31384 39230 78460 156920