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158906 = 21131233
BaseRepresentation
bin100110110010111010
322001222102
4212302322
520041111
63223402
71231166
oct466272
9261872
10158906
11a9430
1277b62
1357437
1441ca6
153213b
hex26cba

158906 has 16 divisors (see below), whose sum is σ = 269568. Its totient is φ = 69600.

The previous prime is 158881. The next prime is 158909. The reversal of 158906 is 609851.

It is a super-2 number, since 2×1589062 = 50502233672, which contains 22 as substring.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (158909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566 + ... + 798.

It is an arithmetic number, because the mean of its divisors is an integer number (16848).

2158906 is an apocalyptic number.

158906 is a deficient number, since it is larger than the sum of its proper divisors (110662).

158906 is a wasteful number, since it uses less digits than its factorization.

158906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 158906 is about 398.6301544038. The cubic root of 158906 is about 54.1643370464.

The spelling of 158906 in words is "one hundred fifty-eight thousand, nine hundred six".

Divisors: 1 2 11 22 31 62 233 341 466 682 2563 5126 7223 14446 79453 158906