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27245480 = 235681137
BaseRepresentation
bin110011111101…
…1101110101000
31220021012202212
41213323232220
523433323410
62411544252
7450403613
oct147735650
956235685
1027245480
1114419a29
12915b088
13584c2b2
14389317a
1525d2b05
hex19fbba8

27245480 has 16 divisors (see below), whose sum is σ = 61302420. Its totient is φ = 10898176.

The previous prime is 27245473. The next prime is 27245489. The reversal of 27245480 is 8454272.

It can be written as a sum of positive squares in 2 ways, for example, as 27227524 + 17956 = 5218^2 + 134^2 .

It is not an unprimeable number, because it can be changed into a prime (27245489) 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, 340529 + ... + 340608.

Almost surely, 227245480 is an apocalyptic number.

27245480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27245480 is an abundant number, since it is smaller than the sum of its proper divisors (34056940).

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

27245480 is a wasteful number, since it uses less digits than its factorization.

27245480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681148 (or 681144 counting only the distinct ones).

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

The square root of 27245480 is about 5219.7202990199. The cubic root of 27245480 is about 300.9064436266.

The spelling of 27245480 in words is "twenty-seven million, two hundred forty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 681137 1362274 2724548 3405685 5449096 6811370 13622740 27245480