Base | Representation |
---|---|
bin | 1010101011111010… |
… | …0000000100110111 |
3 | 21101220121110101022 |
4 | 2222332200010313 |
5 | 21333314323111 |
6 | 1152350051355 |
7 | 131040640631 |
oct | 25276400467 |
9 | 7356543338 |
10 | 2868511031 |
11 | 1242221881 |
12 | 6807a9b5b |
13 | 369397109 |
14 | 1d2d79a51 |
15 | 11bc6e2db |
hex | aafa0137 |
2868511031 has 8 divisors (see below), whose sum is σ = 3087039024. Its totient is φ = 2655515520.
The previous prime is 2868511007. The next prime is 2868511039. The reversal of 2868511031 is 1301158682.
2868511031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2868511031 is a prime.
It is a super-2 number, since 2×28685110312 = 16456711069937365922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2868510982 and 2868511000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2868511039) 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, 1382045 + ... + 1384118.
It is an arithmetic number, because the mean of its divisors is an integer number (385879878).
Almost surely, 22868511031 is an apocalyptic number.
2868511031 is a deficient number, since it is larger than the sum of its proper divisors (218527993).
2868511031 is a wasteful number, since it uses less digits than its factorization.
2868511031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2766241.
The product of its (nonzero) digits is 11520, while the sum is 35.
The square root of 2868511031 is about 53558.4823440695. The cubic root of 2868511031 is about 1420.8629006104.
The spelling of 2868511031 in words is "two billion, eight hundred sixty-eight million, five hundred eleven thousand, thirty-one".
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