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136218 = 2373311
BaseRepresentation
bin100001010000011010
320220212010
4201100122
513324333
62530350
71105065
oct412032
9226763
10136218
1193385
12669b6
134a004
14378dc
152a563
hex2141a

136218 has 16 divisors (see below), whose sum is σ = 277056. Its totient is φ = 44640.

The previous prime is 136217. The next prime is 136223. The reversal of 136218 is 812631.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 136194 and 136203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136217) 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, 283 + ... + 593.

It is an arithmetic number, because the mean of its divisors is an integer number (17316).

2136218 is an apocalyptic number.

136218 is an abundant number, since it is smaller than the sum of its proper divisors (140838).

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

136218 is a wasteful number, since it uses less digits than its factorization.

136218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389.

The product of its digits is 288, while the sum is 21.

The square root of 136218 is about 369.0772276909. The cubic root of 136218 is about 51.4530945656.

Adding to 136218 its reverse (812631), we get a palindrome (948849).

The spelling of 136218 in words is "one hundred thirty-six thousand, two hundred eighteen".

Divisors: 1 2 3 6 73 146 219 311 438 622 933 1866 22703 45406 68109 136218