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136986 = 2317279
BaseRepresentation
bin100001011100011010
320221220120
4201130122
513340421
62534110
71110243
oct413432
9227816
10136986
1193a13
1267336
134a475
1437cca
152a8c6
hex2171a

136986 has 24 divisors (see below), whose sum is σ = 294720. Its totient is φ = 42432.

The previous prime is 136979. The next prime is 136987. The reversal of 136986 is 689631.

It is not an unprimeable number, because it can be changed into a prime (136987) by changing a digit.

136986 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 11 ways as a sum of consecutive naturals, for example, 1695 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (12280).

2136986 is an apocalyptic number.

136986 is an abundant number, since it is smaller than the sum of its proper divisors (157734).

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

136986 is a wasteful number, since it uses less digits than its factorization.

136986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 101 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 136986 is about 370.1161979703. The cubic root of 136986 is about 51.5496112873.

The spelling of 136986 in words is "one hundred thirty-six thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 17 34 51 79 102 158 237 289 474 578 867 1343 1734 2686 4029 8058 22831 45662 68493 136986