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27318140 = 2251365907
BaseRepresentation
bin110100000110…
…1011101111100
31220101220102222
41220031131330
523443140030
62413304512
7451125503
oct150153574
956356388
1027318140
1114469583
129195138
1358763a5
1438b183a
1525e93e5
hex1a0d77c

27318140 has 12 divisors (see below), whose sum is σ = 57368136. Its totient is φ = 10927248.

The previous prime is 27318127. The next prime is 27318163. The reversal of 27318140 is 4181372.

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, 682934 + ... + 682973.

It is an arithmetic number, because the mean of its divisors is an integer number (4780678).

Almost surely, 227318140 is an apocalyptic number.

27318140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27318140 is an abundant number, since it is smaller than the sum of its proper divisors (30049996).

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

27318140 is a wasteful number, since it uses less digits than its factorization.

27318140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365916 (or 1365914 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 27318140 is about 5226.6758078151. The cubic root of 27318140 is about 301.1736984147.

The spelling of 27318140 in words is "twenty-seven million, three hundred eighteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1365907 2731814 5463628 6829535 13659070 27318140