Base | Representation |
---|---|
bin | 111100110111010… |
… | …011110110101001 |
3 | 2122011102220001011 |
4 | 330313103312221 |
5 | 4042402212301 |
6 | 245154223521 |
7 | 34206323545 |
oct | 7467236651 |
9 | 2564386034 |
10 | 1021132201 |
11 | 484447811 |
12 | 245b84ba1 |
13 | 133728a4b |
14 | 9988ca25 |
15 | 5e9a7a51 |
hex | 3cdd3da9 |
1021132201 has 2 divisors, whose sum is σ = 1021132202. Its totient is φ = 1021132200.
The previous prime is 1021132169. The next prime is 1021132207. The reversal of 1021132201 is 1022311201.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 578450601 + 442681600 = 24051^2 + 21040^2 .
It is a cyclic number.
It is not a de Polignac number, because 1021132201 - 25 = 1021132169 is a prime.
It is not a weakly prime, because it can be changed into another prime (1021132207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510566100 + 510566101.
It is an arithmetic number, because the mean of its divisors is an integer number (510566101).
Almost surely, 21021132201 is an apocalyptic number.
It is an amenable number.
1021132201 is a deficient number, since it is larger than the sum of its proper divisors (1).
1021132201 is an equidigital number, since it uses as much as digits as its factorization.
1021132201 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 24, while the sum is 13.
The square root of 1021132201 is about 31955.1592235119. The cubic root of 1021132201 is about 1006.9950225696.
Adding to 1021132201 its reverse (1022311201), we get a palindrome (2043443402).
The spelling of 1021132201 in words is "one billion, twenty-one million, one hundred thirty-two thousand, two hundred one".
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