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136844860 = 2256842243
BaseRepresentation
bin10000010100000…
…01011000111100
3100112111102212011
420022001120330
5240013013420
621325021004
73251106415
oct1012013074
9315442764
10136844860
1170277629
12399b4764
13224741b9
141426280c
15c03195a
hex828163c

136844860 has 12 divisors (see below), whose sum is σ = 287374248. Its totient is φ = 54737936.

The previous prime is 136844843. The next prime is 136844879. The reversal of 136844860 is 68448631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3421102 + ... + 3421141.

It is an arithmetic number, because the mean of its divisors is an integer number (23947854).

Almost surely, 2136844860 is an apocalyptic number.

136844860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136844860 is an abundant number, since it is smaller than the sum of its proper divisors (150529388).

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

136844860 is a wasteful number, since it uses less digits than its factorization.

136844860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6842252 (or 6842250 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 136844860 is about 11698.0707811160. The cubic root of 136844860 is about 515.3190093161.

The spelling of 136844860 in words is "one hundred thirty-six million, eight hundred forty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 6842243 13684486 27368972 34211215 68422430 136844860