Base | Representation |
---|---|
bin | 10011100011110100… |
… | …011000110011011111 |
3 | 2000012200000200102012 |
4 | 103203310120303133 |
5 | 321003004432203 |
6 | 13352002221435 |
7 | 1342310212022 |
oct | 234364306337 |
9 | 60180020365 |
10 | 21002030303 |
11 | 89a810a241 |
12 | 40a165487b |
13 | 1c99175c87 |
14 | 10334011b9 |
15 | 82dbedbd8 |
hex | 4e3d18cdf |
21002030303 has 2 divisors, whose sum is σ = 21002030304. Its totient is φ = 21002030302.
The previous prime is 21002030297. The next prime is 21002030311. The reversal of 21002030303 is 30303020012.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 21002030303 - 28 = 21002030047 is a prime.
21002030303 is a modest number, since divided by 30303 gives 21002 as remainder.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (21002030383) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501015151 + 10501015152.
It is an arithmetic number, because the mean of its divisors is an integer number (10501015152).
Almost surely, 221002030303 is an apocalyptic number.
21002030303 is a deficient number, since it is larger than the sum of its proper divisors (1).
21002030303 is an equidigital number, since it uses as much as digits as its factorization.
21002030303 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 108, while the sum is 14.
Adding to 21002030303 its reverse (30303020012), we get a palindrome (51305050315).
The spelling of 21002030303 in words is "twenty-one billion, two million, thirty thousand, three hundred three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.097 sec. • engine limits •