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27407434842 = 2321522635269
BaseRepresentation
bin11001100001100111…
…000100010001011010
32121202001220221120100
4121201213010101122
5422112300403332
620331340240230
71660116231564
oct314147042132
977661827510
1027407434842
11106948674a7
12538a840076
13277a226288
14147ddc0334
15aa621667c
hex6619c445a

27407434842 has 12 divisors (see below), whose sum is σ = 59382775530. Its totient is φ = 9135811608.

The previous prime is 27407434829. The next prime is 27407434891. The reversal of 27407434842 is 24843470472.

It can be written as a sum of positive squares in only one way, i.e., 27158710401 + 248724441 = 164799^2 + 15771^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 761317617 + ... + 761317652.

Almost surely, 227407434842 is an apocalyptic number.

27407434842 is an abundant number, since it is smaller than the sum of its proper divisors (31975340688).

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

27407434842 is a wasteful number, since it uses less digits than its factorization.

27407434842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522635277 (or 1522635274 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 45.

The spelling of 27407434842 in words is "twenty-seven billion, four hundred seven million, four hundred thirty-four thousand, eight hundred forty-two".

Divisors: 1 2 3 6 9 18 1522635269 3045270538 4567905807 9135811614 13703717421 27407434842