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27204040 = 2356411061
BaseRepresentation
bin110011111000…
…1100111001000
31220012002221001
41213301213020
523431012130
62411024344
7450142033
oct147614710
956162831
1027204040
11143a0886
12913b0b4
135836486
14388201a
1525c56ca
hex19f19c8

27204040 has 32 divisors (see below), whose sum is σ = 61362360. Its totient is φ = 10854400.

The previous prime is 27204031. The next prime is 27204041. The reversal of 27204040 is 4040272.

It can be written as a sum of positive squares in 4 ways, for example, as 26604964 + 599076 = 5158^2 + 774^2 .

27204040 is a modest number, since divided by 4040 gives 2720 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 27203999 and 27204017.

It is not an unprimeable number, because it can be changed into a prime (27204041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25110 + ... + 26170.

Almost surely, 227204040 is an apocalyptic number.

27204040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27204040 is an abundant number, since it is smaller than the sum of its proper divisors (34158320).

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

27204040 is a wasteful number, since it uses less digits than its factorization.

27204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713 (or 1709 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 27204040 is about 5215.7492271006. The cubic root of 27204040 is about 300.7538080288.

The spelling of 27204040 in words is "twenty-seven million, two hundred four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 641 1061 1282 2122 2564 3205 4244 5128 5305 6410 8488 10610 12820 21220 25640 42440 680101 1360202 2720404 3400505 5440808 6801010 13602020 27204040