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27054980 = 2251352749
BaseRepresentation
bin110011100110…
…1001110000100
31212220112110022
41213031032010
523411224410
62403514312
7445651331
oct147151604
955815408
1027054980
11142a9897
129088998
1357b3684
143843988
152596455
hex19cd384

27054980 has 12 divisors (see below), whose sum is σ = 56815500. Its totient is φ = 10821984.

The previous prime is 27054967. The next prime is 27054983. The reversal of 27054980 is 8945072.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 22108804 = 2224^2 + 4702^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27054980.

It is not an unprimeable number, because it can be changed into a prime (27054983) 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, 676355 + ... + 676394.

It is an arithmetic number, because the mean of its divisors is an integer number (4734625).

Almost surely, 227054980 is an apocalyptic number.

27054980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27054980 is an abundant number, since it is smaller than the sum of its proper divisors (29760520).

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

27054980 is a wasteful number, since it uses less digits than its factorization.

27054980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352758 (or 1352756 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 27054980 is about 5201.4401851795. The cubic root of 27054980 is about 300.2034915690.

The spelling of 27054980 in words is "twenty-seven million, fifty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1352749 2705498 5410996 6763745 13527490 27054980