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27137140 = 2251356857
BaseRepresentation
bin110011110000…
…1010001110100
31220001201011021
41213201101310
523421342030
62405350524
7446443012
oct147412164
956051137
1027137140
1114355598
129108444
135811ba4
1438658b2
1525b097a
hex19e1474

27137140 has 12 divisors (see below), whose sum is σ = 56988036. Its totient is φ = 10854848.

The previous prime is 27137137. The next prime is 27137141. The reversal of 27137140 is 4173172.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16548624 + 10588516 = 4068^2 + 3254^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27137141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678409 + ... + 678448.

It is an arithmetic number, because the mean of its divisors is an integer number (4749003).

Almost surely, 227137140 is an apocalyptic number.

27137140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27137140 is an abundant number, since it is smaller than the sum of its proper divisors (29850896).

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

27137140 is a wasteful number, since it uses less digits than its factorization.

27137140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356866 (or 1356864 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 27137140 is about 5209.3320109204. The cubic root of 27137140 is about 300.5070683819.

The spelling of 27137140 in words is "twenty-seven million, one hundred thirty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1356857 2713714 5427428 6784285 13568570 27137140