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27490 = 252749
BaseRepresentation
bin110101101100010
31101201011
412231202
51334430
6331134
7143101
oct65542
941634
1027490
1119721
1213aaa
13c688
14a038
15822a
hex6b62

27490 has 8 divisors (see below), whose sum is σ = 49500. Its totient is φ = 10992.

The previous prime is 27487. The next prime is 27509. The reversal of 27490 is 9472.

It can be written as a sum of positive squares in 2 ways, for example, as 25281 + 2209 = 159^2 + 47^2 .

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

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365 + ... + 1384.

227490 is an apocalyptic number.

27490 is a deficient number, since it is larger than the sum of its proper divisors (22010).

27490 is a wasteful number, since it uses less digits than its factorization.

27490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 27490 is about 165.8010856418. The cubic root of 27490 is about 30.1803945672.

The spelling of 27490 in words is "twenty-seven thousand, four hundred ninety".

Divisors: 1 2 5 10 2749 5498 13745 27490