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27271382031 = 3217315749817
BaseRepresentation
bin11001011001100000…
…000100010000001111
32121101120220202012100
4121121200010100033
5421322433211111
620310040210143
71653544631265
oct313140042017
977346822170
1027271382031
1110624a90a63
125351169953
132757c9b75a
141469cc6435
15a992de756
hex65980440f

27271382031 has 24 divisors (see below), whose sum is σ = 43054637184. Its totient is φ = 16559470080.

The previous prime is 27271381913. The next prime is 27271382113. The reversal of 27271382031 is 13028317272.

27271382031 is a `hidden beast` number, since 2 + 7 + 271 + 382 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 27271382031 - 27 = 27271381903 is a prime.

It is a super-2 number, since 2×272713820312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27271382531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2870166 + ... + 2879651.

It is an arithmetic number, because the mean of its divisors is an integer number (1793943216).

Almost surely, 227271382031 is an apocalyptic number.

27271382031 is a deficient number, since it is larger than the sum of its proper divisors (15783255153).

27271382031 is a wasteful number, since it uses less digits than its factorization.

27271382031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749871 (or 5749868 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 27271382031 in words is "twenty-seven billion, two hundred seventy-one million, three hundred eighty-two thousand, thirty-one".

Divisors: 1 3 9 17 31 51 93 153 279 527 1581 4743 5749817 17249451 51748353 97746889 178244327 293240667 534732981 879722001 1604198943 3030153559 9090460677 27271382031