Base | Representation |
---|---|
bin | 1000101001001110… |
… | …1111011110001101 |
3 | 12222201022002220111 |
4 | 2022103233132031 |
5 | 14223012242424 |
6 | 1022130520021 |
7 | 111334223632 |
oct | 21223573615 |
9 | 5881262814 |
10 | 2320430989 |
11 | a90906168 |
12 | 549136011 |
13 | 2ac9797b6 |
14 | 18026a189 |
15 | d8aaa194 |
hex | 8a4ef78d |
2320430989 has 2 divisors, whose sum is σ = 2320430990. Its totient is φ = 2320430988.
The previous prime is 2320430977. The next prime is 2320431037. The reversal of 2320430989 is 9890340232.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2075258025 + 245172964 = 45555^2 + 15658^2 .
It is a cyclic number.
It is not a de Polignac number, because 2320430989 - 221 = 2318333837 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2320730989) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160215494 + 1160215495.
It is an arithmetic number, because the mean of its divisors is an integer number (1160215495).
Almost surely, 22320430989 is an apocalyptic number.
It is an amenable number.
2320430989 is a deficient number, since it is larger than the sum of its proper divisors (1).
2320430989 is an equidigital number, since it uses as much as digits as its factorization.
2320430989 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 93312, while the sum is 40.
The square root of 2320430989 is about 48170.8520684449. The cubic root of 2320430989 is about 1323.9031604448.
The spelling of 2320430989 in words is "two billion, three hundred twenty million, four hundred thirty thousand, nine hundred eighty-nine".
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