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27130710220 = 2251591385247
BaseRepresentation
bin11001010001000111…
…011100100011001100
32121000210012212202021
4121101013130203030
5421030430211340
620244053135524
71650216142345
oct312107344314
977023185667
1027130710220
1110562640169
12531202a5a4
132734ab76b3
1414553490cc
15a8bca3e4a
hex6511dc8cc

27130710220 has 24 divisors (see below), whose sum is σ = 56978740224. Its totient is φ = 10851474816.

The previous prime is 27130710181. The next prime is 27130710221. The reversal of 27130710220 is 2201703172.

It is a super-2 number, since 2×271307102202 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27130710221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275637 + ... + 360883.

It is an arithmetic number, because the mean of its divisors is an integer number (2374114176).

Almost surely, 227130710220 is an apocalyptic number.

27130710220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27130710220 is an abundant number, since it is smaller than the sum of its proper divisors (29848030004).

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

27130710220 is a wasteful number, since it uses less digits than its factorization.

27130710220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101169 (or 101167 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The spelling of 27130710220 in words is "twenty-seven billion, one hundred thirty million, seven hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 15913 31826 63652 79565 85247 159130 170494 318260 340988 426235 852470 1704940 1356535511 2713071022 5426142044 6782677555 13565355110 27130710220