Base | Representation |
---|---|
bin | 1010101011111110… |
… | …1110001001011011 |
3 | 21101221012201001000 |
4 | 2222333232021123 |
5 | 21333410041221 |
6 | 1152401000043 |
7 | 131043442140 |
oct | 25277561133 |
9 | 7357181030 |
10 | 2868830811 |
11 | 1242420060 |
12 | 680923023 |
13 | 369479832 |
14 | 1d30203c7 |
15 | 11bcd3e26 |
hex | aafee25b |
2868830811 has 64 divisors (see below), whose sum is σ = 5308047360. Its totient is φ = 1487717280.
The previous prime is 2868830761. The next prime is 2868830819. The reversal of 2868830811 is 1180388682.
It is not a de Polignac number, because 2868830811 - 217 = 2868699739 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2868830819) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2009680 + ... + 2011106.
It is an arithmetic number, because the mean of its divisors is an integer number (82938240).
Almost surely, 22868830811 is an apocalyptic number.
2868830811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2868830811 is a deficient number, since it is larger than the sum of its proper divisors (2439216549).
2868830811 is a wasteful number, since it uses less digits than its factorization.
2868830811 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2421 (or 2415 counting only the distinct ones).
The product of its (nonzero) digits is 147456, while the sum is 45.
The square root of 2868830811 is about 53561.4675956513. The cubic root of 2868830811 is about 1420.9156976481.
The spelling of 2868830811 in words is "two billion, eight hundred sixty-eight million, eight hundred thirty thousand, eight hundred eleven".
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