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27051140 = 2251352557
BaseRepresentation
bin110011100110…
…0010010000100
31212220100012002
41213030102010
523411114030
62403444432
7445634204
oct147142204
955810162
1027051140
11142a6a16
129086718
1357b19bc
143842404
152595245
hex19cc484

27051140 has 12 divisors (see below), whose sum is σ = 56807436. Its totient is φ = 10820448.

The previous prime is 27051137. The next prime is 27051149. The reversal of 27051140 is 4115072.

It can be written as a sum of positive squares in 2 ways, for example, as 15382084 + 11669056 = 3922^2 + 3416^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1352557 = 27051140 / (2 + 7 + 0 + 5 + 1 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (27051149) 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, 676259 + ... + 676298.

It is an arithmetic number, because the mean of its divisors is an integer number (4733953).

Almost surely, 227051140 is an apocalyptic number.

27051140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27051140 is an abundant number, since it is smaller than the sum of its proper divisors (29756296).

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

27051140 is a wasteful number, since it uses less digits than its factorization.

27051140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352566 (or 1352564 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 27051140 is about 5201.0710435448. The cubic root of 27051140 is about 300.1892879492.

The spelling of 27051140 in words is "twenty-seven million, fifty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1352557 2705114 5410228 6762785 13525570 27051140