Base | Representation |
---|---|
bin | 1000100111011100… |
… | …1000011011100111 |
3 | 12222012012001220212 |
4 | 2021313020123213 |
5 | 14214102243142 |
6 | 1021302050035 |
7 | 111213406130 |
oct | 21167103347 |
9 | 5865161825 |
10 | 2312931047 |
11 | a87653369 |
12 | 54671991b |
13 | 2ab251b6b |
14 | 17d276c87 |
15 | d80c7d82 |
hex | 89dc86e7 |
2312931047 has 32 divisors (see below), whose sum is σ = 2886451200. Its totient is φ = 1808352000.
The previous prime is 2312931041. The next prime is 2312931097. The reversal of 2312931047 is 7401392132.
It is not a de Polignac number, because 2312931047 - 212 = 2312926951 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2312931041) by changing a digit.
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, 2008922 + ... + 2010072.
It is an arithmetic number, because the mean of its divisors is an integer number (90201600).
Almost surely, 22312931047 is an apocalyptic number.
2312931047 is a deficient number, since it is larger than the sum of its proper divisors (573520153).
2312931047 is a wasteful number, since it uses less digits than its factorization.
2312931047 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1727.
The product of its (nonzero) digits is 9072, while the sum is 32.
The square root of 2312931047 is about 48092.9417586406. The cubic root of 2312931047 is about 1322.4752771895.
The spelling of 2312931047 in words is "two billion, three hundred twelve million, nine hundred thirty-one thousand, forty-seven".
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