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27130127240 = 235678253181
BaseRepresentation
bin11001010001000101…
…001110001110001000
32121000202010021001102
4121101011032032020
5421030303032430
620244032440532
71650211163606
oct312105161610
977022107042
1027130127240
1110562282167
1253119a9148
132734942238
141455236876
15a8bbdb345
hex65114e388

27130127240 has 16 divisors (see below), whose sum is σ = 61042786380. Its totient is φ = 10852050880.

The previous prime is 27130127209. The next prime is 27130127251. The reversal of 27130127240 is 4272103172.

It can be written as a sum of positive squares in 2 ways, for example, as 25537957636 + 1592169604 = 159806^2 + 39902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339126551 + ... + 339126630.

Almost surely, 227130127240 is an apocalyptic number.

27130127240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27130127240 is an abundant number, since it is smaller than the sum of its proper divisors (33912659140).

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

27130127240 is a wasteful number, since it uses less digits than its factorization.

27130127240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678253192 (or 678253188 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The spelling of 27130127240 in words is "twenty-seven billion, one hundred thirty million, one hundred twenty-seven thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 678253181 1356506362 2713012724 3391265905 5426025448 6782531810 13565063620 27130127240