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27142487 = 113401599
BaseRepresentation
bin110011110001…
…0100101010111
31220001222111022
41213202211113
523422024422
62405431355
7446464421
oct147424527
956058438
1027142487
1114359609
12910b55b
135814458
143867811
1525b2342
hex19e2957

27142487 has 8 divisors (see below), whose sum is σ = 27496800. Its totient is φ = 26790400.

The previous prime is 27142481. The next prime is 27142517. The reversal of 27142487 is 78424172.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27142487 - 214 = 27126103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27142481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45014 + ... + 45612.

It is an arithmetic number, because the mean of its divisors is an integer number (3437100).

Almost surely, 227142487 is an apocalyptic number.

27142487 is a deficient number, since it is larger than the sum of its proper divisors (354313).

27142487 is a wasteful number, since it uses less digits than its factorization.

27142487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113.

The product of its digits is 25088, while the sum is 35.

The square root of 27142487 is about 5209.8451992358. The cubic root of 27142487 is about 300.5268040133.

The spelling of 27142487 in words is "twenty-seven million, one hundred forty-two thousand, four hundred eighty-seven".

Divisors: 1 113 401 599 45313 67687 240199 27142487