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27081381260 = 22511871140749
BaseRepresentation
bin11001001110001011…
…010001010110001100
32120220100101201010202
4121032023101112030
5420430313200020
620235131553032
71646046641213
oct311613212614
976810351122
1027081381260
111053780862a
1252b95bb778
13272780586b
14144c98807a
15a877ace75
hex64e2d158c

27081381260 has 24 divisors (see below), whose sum is σ = 56918862000. Its totient is φ = 10823417024.

The previous prime is 27081381241. The next prime is 27081381277. The reversal of 27081381260 is 6218318072.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546635 + ... + 594114.

It is an arithmetic number, because the mean of its divisors is an integer number (2371619250).

Almost surely, 227081381260 is an apocalyptic number.

27081381260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27081381260 is an abundant number, since it is smaller than the sum of its proper divisors (29837480740).

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

27081381260 is a wasteful number, since it uses less digits than its factorization.

27081381260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141945 (or 1141943 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 27081381260 in words is "twenty-seven billion, eighty-one million, three hundred eighty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 1187 2374 4748 5935 11870 23740 1140749 2281498 4562996 5703745 11407490 22814980 1354069063 2708138126 5416276252 6770345315 13540690630 27081381260