Base | Representation |
---|---|
bin | 111110101001101… |
… | …0000110000110001 |
3 | 12102111122220011212 |
4 | 1331103100300301 |
5 | 13301130421033 |
6 | 544333245505 |
7 | 103044263015 |
oct | 17523206061 |
9 | 5374586155 |
10 | 2102201393 |
11 | 989702026 |
12 | 4a8033895 |
13 | 2766abb66 |
14 | 15d2a0545 |
15 | c484e748 |
hex | 7d4d0c31 |
2102201393 has 2 divisors, whose sum is σ = 2102201394. Its totient is φ = 2102201392.
The previous prime is 2102201333. The next prime is 2102201407. The reversal of 2102201393 is 3931022012.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2079998449 + 22202944 = 45607^2 + 4712^2 .
It is a cyclic number.
It is not a de Polignac number, because 2102201393 - 28 = 2102201137 is a prime.
It is a super-2 number, since 2×21022013932 = 8838501393462280898, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2102201333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051100696 + 1051100697.
It is an arithmetic number, because the mean of its divisors is an integer number (1051100697).
Almost surely, 22102201393 is an apocalyptic number.
It is an amenable number.
2102201393 is a deficient number, since it is larger than the sum of its proper divisors (1).
2102201393 is an equidigital number, since it uses as much as digits as its factorization.
2102201393 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 23.
The square root of 2102201393 is about 45849.7698249402. The cubic root of 2102201393 is about 1281.0264782457.
The spelling of 2102201393 in words is "two billion, one hundred two million, two hundred one thousand, three hundred ninety-three".
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