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31055341265 = 513929514289
BaseRepresentation
bin11100111011000010…
…101110011011010001
32222011022002210102122
4130323002232123101
51002100131410030
622133331424025
72146403021354
oct347302563321
988138083378
1031055341265
1112196a265a3
126028455015
132c0bc0a8a0
14170868029b
15c1b5dc8e5
hex73b0ae6d1

31055341265 has 16 divisors (see below), whose sum is σ = 40176334800. Its totient is φ = 22908444672.

The previous prime is 31055341249. The next prime is 31055341271. The reversal of 31055341265 is 56214355013.

It can be written as a sum of positive squares in 8 ways, for example, as 10365683344 + 20689657921 = 101812^2 + 143839^2 .

It is a cyclic number.

It is not a de Polignac number, because 31055341265 - 24 = 31055341249 is a prime.

It is a super-2 number, since 2×310553412652 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 196760 + ... + 317529.

It is an arithmetic number, because the mean of its divisors is an integer number (2511020925).

Almost surely, 231055341265 is an apocalyptic number.

It is an amenable number.

31055341265 is a deficient number, since it is larger than the sum of its proper divisors (9120993535).

31055341265 is a wasteful number, since it uses less digits than its factorization.

31055341265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515236.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 31055341265 its reverse (56214355013), we get a palindrome (87269696278).

The spelling of 31055341265 in words is "thirty-one billion, fifty-five million, three hundred forty-one thousand, two hundred sixty-five".

Divisors: 1 5 13 65 929 4645 12077 60385 514289 2571445 6685757 33428785 477774481 2388872405 6211068253 31055341265