Base | Representation |
---|---|
bin | 11101000101011101… |
… | …110001010111000101 |
3 | 2222121111010201002112 |
4 | 131011131301113011 |
5 | 1002424413001313 |
6 | 22202535350405 |
7 | 2153625230330 |
oct | 350535612705 |
9 | 88544121075 |
10 | 31230203333 |
11 | 122766a9aaa |
12 | 6076b22405 |
13 | 2c39202c74 |
14 | 172399b617 |
15 | c2bb2d8a8 |
hex | 7457715c5 |
31230203333 has 8 divisors (see below), whose sum is σ = 35705165952. Its totient is φ = 26758616976.
The previous prime is 31230203297. The next prime is 31230203363. The reversal of 31230203333 is 33330203213.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 31230203333 - 220 = 31229154757 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31230203299 and 31230203308.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31230203363) 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, 824210 + ... + 861267.
It is an arithmetic number, because the mean of its divisors is an integer number (4463145744).
Almost surely, 231230203333 is an apocalyptic number.
It is an amenable number.
31230203333 is a deficient number, since it is larger than the sum of its proper divisors (4474962619).
31230203333 is a wasteful number, since it uses less digits than its factorization.
31230203333 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1688131.
The product of its (nonzero) digits is 2916, while the sum is 23.
Adding to 31230203333 its reverse (33330203213), we get a palindrome (64560406546).
The spelling of 31230203333 in words is "thirty-one billion, two hundred thirty million, two hundred three thousand, three hundred thirty-three".
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