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27424580 = 2251371229
BaseRepresentation
bin110100010011…
…1011101000100
31220121022110012
41220213131010
524010041310
62415445352
7452051021
oct150473504
956538405
1027424580
1114531547
129226858
1358b2981
1438dc548
15261ac05
hex1a27744

27424580 has 12 divisors (see below), whose sum is σ = 57591660. Its totient is φ = 10969824.

The previous prime is 27424571. The next prime is 27424601. The reversal of 27424580 is 8542472.

It can be written as a sum of positive squares in 2 ways, for example, as 13645636 + 13778944 = 3694^2 + 3712^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 685595 + ... + 685634.

It is an arithmetic number, because the mean of its divisors is an integer number (4799305).

Almost surely, 227424580 is an apocalyptic number.

27424580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27424580 is an abundant number, since it is smaller than the sum of its proper divisors (30167080).

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

27424580 is a wasteful number, since it uses less digits than its factorization.

27424580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371238 (or 1371236 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 27424580 is about 5236.8482888088. The cubic root of 27424580 is about 301.5643470674.

The spelling of 27424580 in words is "twenty-seven million, four hundred twenty-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 1371229 2742458 5484916 6856145 13712290 27424580