Base | Representation |
---|---|
bin | 111100100010001… |
… | …1010111110101100 |
3 | 12020120001202121212 |
4 | 1321010122332230 |
5 | 13124441432340 |
6 | 533315413552 |
7 | 101222635235 |
oct | 17104327654 |
9 | 5216052555 |
10 | 2031202220 |
11 | 952619323 |
12 | 4882b42b8 |
13 | 264a80608 |
14 | 153a9c08c |
15 | bd4c7a65 |
hex | 7911afac |
2031202220 has 96 divisors (see below), whose sum is σ = 4707763200. Its totient is φ = 732720384.
The previous prime is 2031202193. The next prime is 2031202231. The reversal of 2031202220 is 222021302.
It is a junction number, because it is equal to n+sod(n) for n = 2031202195 and 2031202204.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 2420561 + ... + 2421399.
It is an arithmetic number, because the mean of its divisors is an integer number (49039200).
Almost surely, 22031202220 is an apocalyptic number.
2031202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2031202220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2353881600).
2031202220 is an abundant number, since it is smaller than the sum of its proper divisors (2676560980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2031202220 is a wasteful number, since it uses less digits than its factorization.
2031202220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1167 (or 1165 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 14.
The square root of 2031202220 is about 45068.8608686752. The cubic root of 2031202220 is about 1266.4393246961.
Adding to 2031202220 its reverse (222021302), we get a palindrome (2253223522).
The spelling of 2031202220 in words is "two billion, thirty-one million, two hundred two thousand, two hundred twenty".
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