Base | Representation |
---|---|
bin | 11100111011001011… |
… | …001111101111100101 |
3 | 2222011110022021101022 |
4 | 130323023033233211 |
5 | 1002101214344020 |
6 | 22133451340525 |
7 | 2146431013361 |
oct | 347313175745 |
9 | 88143267338 |
10 | 31057574885 |
11 | 12198211767 |
12 | 6029151745 |
13 | 2c0c51045c |
14 | 1708aa22a1 |
15 | c1b8ce625 |
hex | 73b2cfbe5 |
31057574885 has 8 divisors (see below), whose sum is σ = 37284822816. Its totient is φ = 24835571280.
The previous prime is 31057574879. The next prime is 31057574917. The reversal of 31057574885 is 58847575013.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31057574885 - 228 = 30789139429 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1298039 + ... + 1321748.
It is an arithmetic number, because the mean of its divisors is an integer number (4660602852).
Almost surely, 231057574885 is an apocalyptic number.
It is an amenable number.
31057574885 is a deficient number, since it is larger than the sum of its proper divisors (6227247931).
31057574885 is a wasteful number, since it uses less digits than its factorization.
31057574885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2622163.
The product of its (nonzero) digits is 4704000, while the sum is 53.
The spelling of 31057574885 in words is "thirty-one billion, fifty-seven million, five hundred seventy-four thousand, eight hundred eighty-five".
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