Base | Representation |
---|---|
bin | 11100111001101010… |
… | …000100010010101101 |
3 | 2222002200101000102112 |
4 | 130321222010102231 |
5 | 1002023204200023 |
6 | 22131141333405 |
7 | 2146001332535 |
oct | 347152042255 |
9 | 88080330375 |
10 | 31032100013 |
11 | 121848a2052 |
12 | 6020707265 |
13 | 2c07161075 |
14 | 17055504c5 |
15 | c1954b478 |
hex | 739a844ad |
31032100013 has 8 divisors (see below), whose sum is σ = 31720616928. Its totient is φ = 30347398224.
The previous prime is 31032099991. The next prime is 31032100027. The reversal of 31032100013 is 31000123013.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31032100013 - 210 = 31032098989 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31032100513) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937331 + ... + 969872.
It is an arithmetic number, because the mean of its divisors is an integer number (3965077116).
Almost surely, 231032100013 is an apocalyptic number.
It is an amenable number.
31032100013 is a deficient number, since it is larger than the sum of its proper divisors (688516915).
31032100013 is a wasteful number, since it uses less digits than its factorization.
31032100013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1907563.
The product of its (nonzero) digits is 54, while the sum is 14.
Adding to 31032100013 its reverse (31000123013), we get a palindrome (62032223026).
The spelling of 31032100013 in words is "thirty-one billion, thirty-two million, one hundred thousand, thirteen".
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