Base | Representation |
---|---|
bin | 1010011110110001… |
… | …0000110100110001 |
3 | 21021001220102221211 |
4 | 2213230100310301 |
5 | 21230212221241 |
6 | 1143100520121 |
7 | 126501330316 |
oct | 24754206461 |
9 | 7231812854 |
10 | 2813398321 |
11 | 12140a9888 |
12 | 666250041 |
13 | 35ab3b846 |
14 | 1c9910d0d |
15 | 116ed4781 |
hex | a7b10d31 |
2813398321 has 2 divisors, whose sum is σ = 2813398322. Its totient is φ = 2813398320.
The previous prime is 2813398271. The next prime is 2813398337. The reversal of 2813398321 is 1238933182.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2526570225 + 286828096 = 50265^2 + 16936^2 .
It is a cyclic number.
It is not a de Polignac number, because 2813398321 - 215 = 2813365553 is a prime.
It is a super-2 number, since 2×28133983212 = 15830420225211238082, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2813198321) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406699160 + 1406699161.
It is an arithmetic number, because the mean of its divisors is an integer number (1406699161).
Almost surely, 22813398321 is an apocalyptic number.
It is an amenable number.
2813398321 is a deficient number, since it is larger than the sum of its proper divisors (1).
2813398321 is an equidigital number, since it uses as much as digits as its factorization.
2813398321 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 62208, while the sum is 40.
The square root of 2813398321 is about 53041.4773644174. The cubic root of 2813398321 is about 1411.7043121997.
The spelling of 2813398321 in words is "two billion, eight hundred thirteen million, three hundred ninety-eight thousand, three hundred twenty-one".
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