Base | Representation |
---|---|
bin | 11100111010110111… |
… | …010010001110010101 |
3 | 2222011002110102102212 |
4 | 130322313102032111 |
5 | 1002043344422130 |
6 | 22133143243205 |
7 | 2146335360545 |
oct | 347267221625 |
9 | 88132412385 |
10 | 31052342165 |
11 | 121952682a9 |
12 | 6027449505 |
13 | 2c0b3ca780 |
14 | 17080dd325 |
15 | c1b1e8e95 |
hex | 73add2395 |
31052342165 has 8 divisors (see below), whose sum is σ = 40129180728. Its totient is φ = 22930960320.
The previous prime is 31052342149. The next prime is 31052342179. The reversal of 31052342165 is 56124325013.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 240157009 + 30812185156 = 15497^2 + 175534^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31052342165 - 24 = 31052342149 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238864106 + ... + 238864235.
It is an arithmetic number, because the mean of its divisors is an integer number (5016147591).
Almost surely, 231052342165 is an apocalyptic number.
It is an amenable number.
31052342165 is a deficient number, since it is larger than the sum of its proper divisors (9076838563).
31052342165 is a wasteful number, since it uses less digits than its factorization.
31052342165 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 477728359.
The product of its (nonzero) digits is 21600, while the sum is 32.
Adding to 31052342165 its reverse (56124325013), we get a palindrome (87176667178).
The spelling of 31052342165 in words is "thirty-one billion, fifty-two million, three hundred forty-two thousand, one hundred sixty-five".
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