Base | Representation |
---|---|
bin | 111100100010001… |
… | …1011011101110101 |
3 | 12020120001212100200 |
4 | 1321010123131311 |
5 | 13124442013323 |
6 | 533315431113 |
7 | 101222644113 |
oct | 17104333565 |
9 | 5216055320 |
10 | 2031204213 |
11 | 95261a875 |
12 | 4882b5499 |
13 | 264a814ac |
14 | 153a9cab3 |
15 | bd4c8443 |
hex | 7911b775 |
2031204213 has 6 divisors (see below), whose sum is σ = 2933961654. Its totient is φ = 1354136136.
The previous prime is 2031204211. The next prime is 2031204223. The reversal of 2031204213 is 3124021302.
It can be written as a sum of positive squares in only one way, i.e., 1921331889 + 109872324 = 43833^2 + 10482^2 .
It is not a de Polignac number, because 2031204213 - 21 = 2031204211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2031204211) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112844670 + ... + 112844687.
It is an arithmetic number, because the mean of its divisors is an integer number (488993609).
Almost surely, 22031204213 is an apocalyptic number.
It is an amenable number.
2031204213 is a deficient number, since it is larger than the sum of its proper divisors (902757441).
2031204213 is a wasteful number, since it uses less digits than its factorization.
2031204213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 225689363 (or 225689360 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2031204213 is about 45068.8829792796. The cubic root of 2031204213 is about 1266.4397389028.
Adding to 2031204213 its reverse (3124021302), we get a palindrome (5155225515).
The spelling of 2031204213 in words is "two billion, thirty-one million, two hundred four thousand, two hundred thirteen".
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