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27479039031 = 3239718794093
BaseRepresentation
bin11001100101111000…
…001101110000110111
32121221001122211001100
4121211320031300313
5422234113222111
620342415101143
71661645656263
oct314570156067
977831584040
1027479039031
1110721223814
1253aa8117b3
13278c007012
1414896dd0a3
15aac65c756
hex665e0dc37

27479039031 has 24 divisors (see below), whose sum is σ = 39822829280. Its totient is φ = 18259027776.

The previous prime is 27479039011. The next prime is 27479039053. The reversal of 27479039031 is 13093097472.

It is not a de Polignac number, because 27479039031 - 29 = 27479038519 is a prime.

It is a super-2 number, since 2×274790390312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27479039011) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 6711621 + ... + 6715713.

Almost surely, 227479039031 is an apocalyptic number.

27479039031 is a deficient number, since it is larger than the sum of its proper divisors (12343790249).

27479039031 is a wasteful number, since it uses less digits than its factorization.

27479039031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375 (or 6372 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 27479039031 in words is "twenty-seven billion, four hundred seventy-nine million, thirty-nine thousand, thirty-one".

Divisors: 1 3 9 397 1191 1879 3573 4093 5637 12279 16911 36837 745963 1624921 2237889 4874763 6713667 7690747 14624289 23072241 69216723 3053226559 9159679677 27479039031