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27530050280 = 235688251257
BaseRepresentation
bin11001101000111010…
…110011101011101000
32122001121122110022212
4121220322303223220
5422340143102110
620351440304252
71663135365155
oct315072635350
978047573285
1027530050280
1110747aa5277
125403912088
1327997577a5
1414923bb22c
15ab1d86e05
hex668eb3ae8

27530050280 has 16 divisors (see below), whose sum is σ = 61942613220. Its totient is φ = 11012020096.

The previous prime is 27530050279. The next prime is 27530050337. The reversal of 27530050280 is 8205003572.

It can be written as a sum of positive squares in 2 ways, for example, as 27503568964 + 26481316 = 165842^2 + 5146^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344125589 + ... + 344125668.

Almost surely, 227530050280 is an apocalyptic number.

27530050280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27530050280 is an abundant number, since it is smaller than the sum of its proper divisors (34412562940).

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

27530050280 is a wasteful number, since it uses less digits than its factorization.

27530050280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688251268 (or 688251264 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 27530050280 in words is "twenty-seven billion, five hundred thirty million, fifty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 688251257 1376502514 2753005028 3441256285 5506010056 6882512570 13765025140 27530050280