Base | Representation |
---|---|
bin | 11100111111100000… |
… | …010010111110110000 |
3 | 2222100111222010002122 |
4 | 130333200102332300 |
5 | 1002223312431112 |
6 | 22145004133412 |
7 | 2151302231336 |
oct | 347740227660 |
9 | 88314863078 |
10 | 31130202032 |
11 | 122252075a6 |
12 | 6049537268 |
13 | 2c2158b9b7 |
14 | 17145a9b56 |
15 | c22e78872 |
hex | 73f812fb0 |
31130202032 has 40 divisors (see below), whose sum is σ = 60781266000. Its totient is φ = 15444836352.
The previous prime is 31130202031. The next prime is 31130202043. The reversal of 31130202032 is 23020203113.
It is a super-3 number, since 3×311302020323 (a number of 32 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 31130202032.
It is not an unprimeable number, because it can be changed into a prime (31130202031) 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 7 ways as a sum of consecutive naturals, for example, 7686344 + ... + 7690392.
It is an arithmetic number, because the mean of its divisors is an integer number (1519531650).
Almost surely, 231130202032 is an apocalyptic number.
It is an amenable number.
31130202032 is a deficient number, since it is larger than the sum of its proper divisors (29651063968).
31130202032 is a wasteful number, since it uses less digits than its factorization.
31130202032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7653 (or 7647 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 31130202032 its reverse (23020203113), we get a palindrome (54150405145).
The spelling of 31130202032 in words is "thirty-one billion, one hundred thirty million, two hundred two thousand, thirty-two".
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