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27208049031 = 3231517118859
BaseRepresentation
bin11001010101101110…
…011110000110000111
32121020011202002122200
4121111232132012013
5421210230032111
620255454525543
71652145413052
oct312556360607
977204662580
1027208049031
11105a2263a39
125333b068b3
132747b256c7
14146171ba99
15a9397e256
hex655b9e187

27208049031 has 24 divisors (see below), whose sum is σ = 40578270720. Its totient is φ = 17549254800.

The previous prime is 27208049027. The next prime is 27208049083. The reversal of 27208049031 is 13094080272.

It is not a de Polignac number, because 27208049031 - 22 = 27208049027 is a prime.

It is a super-2 number, since 2×272080490312 (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 (27208449031) 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, 1433280 + ... + 1452138.

It is an arithmetic number, because the mean of its divisors is an integer number (1690761280).

Almost surely, 227208049031 is an apocalyptic number.

27208049031 is a deficient number, since it is larger than the sum of its proper divisors (13370221689).

27208049031 is a wasteful number, since it uses less digits than its factorization.

27208049031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24067 (or 24064 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 27208049031 in words is "twenty-seven billion, two hundred eight million, forty-nine thousand, thirty-one".

Divisors: 1 3 9 31 93 279 5171 15513 18859 46539 56577 160301 169731 480903 584629 1442709 1753887 5261661 97519889 292559667 877679001 3023116559 9069349677 27208049031