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27482748820 = 2256947197803
BaseRepresentation
bin11001100110000110…
…010111011110010100
32121221022122021220221
4121212012113132110
5422241040430240
620343030404124
71662022340062
oct314606273624
977838567827
1027482748820
1110723327a5a
1253abb00644
13278ca05767
141489dc7032
15aacb41a4a
hex666197794

27482748820 has 24 divisors (see below), whose sum is σ = 57722372064. Its totient is φ = 10991461536.

The previous prime is 27482748793. The next prime is 27482748833. The reversal of 27482748820 is 2884728472.

It is a super-2 number, since 2×274827488202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40039 + ... + 237841.

It is an arithmetic number, because the mean of its divisors is an integer number (2405098836).

Almost surely, 227482748820 is an apocalyptic number.

27482748820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27482748820 is an abundant number, since it is smaller than the sum of its proper divisors (30239623244).

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

27482748820 is a wasteful number, since it uses less digits than its factorization.

27482748820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204759 (or 204757 counting only the distinct ones).

The product of its (nonzero) digits is 3211264, while the sum is 52.

The spelling of 27482748820 in words is "twenty-seven billion, four hundred eighty-two million, seven hundred forty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 6947 13894 27788 34735 69470 138940 197803 395606 791212 989015 1978030 3956060 1374137441 2748274882 5496549764 6870687205 13741374410 27482748820