Base | Representation |
---|---|
bin | 111100100010010… |
… | …0100010000010101 |
3 | 12020120010200202000 |
4 | 1321010210100111 |
5 | 13124444141323 |
6 | 533320305513 |
7 | 101223154062 |
oct | 17104442025 |
9 | 5216120660 |
10 | 2031240213 |
11 | 952644922 |
12 | 488312299 |
13 | 264a949b2 |
14 | 153aabc69 |
15 | bd4d3e43 |
hex | 79124415 |
2031240213 has 8 divisors (see below), whose sum is σ = 3009244800. Its totient is φ = 1354160124.
The previous prime is 2031240199. The next prime is 2031240217. The reversal of 2031240213 is 3120421302.
It is not a de Polignac number, because 2031240213 - 224 = 2014462997 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2031240217) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37615533 + ... + 37615586.
It is an arithmetic number, because the mean of its divisors is an integer number (376155600).
Almost surely, 22031240213 is an apocalyptic number.
It is an amenable number.
2031240213 is a deficient number, since it is larger than the sum of its proper divisors (978004587).
2031240213 is an equidigital number, since it uses as much as digits as its factorization.
2031240213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75231128 (or 75231122 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2031240213 is about 45069.2823661527. The cubic root of 2031240213 is about 1266.4472207635.
Adding to 2031240213 its reverse (3120421302), we get a palindrome (5151661515).
The spelling of 2031240213 in words is "two billion, thirty-one million, two hundred forty thousand, two hundred thirteen".
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