Base | Representation |
---|---|
bin | 101010010110100… |
… | …0111001011000001 |
3 | 10200001001222011211 |
4 | 1110231013023001 |
5 | 10402301041001 |
6 | 353003210121 |
7 | 50134152451 |
oct | 12455071301 |
9 | 3601058154 |
10 | 1421112001 |
11 | 66a1a9531 |
12 | 337b16941 |
13 | 19856109a |
14 | d6a49d61 |
15 | 84b65351 |
hex | 54b472c1 |
1421112001 has 2 divisors, whose sum is σ = 1421112002. Its totient is φ = 1421112000.
The previous prime is 1421111981. The next prime is 1421112041. The reversal of 1421112001 is 1002111241.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1251461376 + 169650625 = 35376^2 + 13025^2 .
It is a cyclic number.
It is not a de Polignac number, because 1421112001 - 211 = 1421109953 is a prime.
It is not a weakly prime, because it can be changed into another prime (1421112041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710556000 + 710556001.
It is an arithmetic number, because the mean of its divisors is an integer number (710556001).
Almost surely, 21421112001 is an apocalyptic number.
It is an amenable number.
1421112001 is a deficient number, since it is larger than the sum of its proper divisors (1).
1421112001 is an equidigital number, since it uses as much as digits as its factorization.
1421112001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16, while the sum is 13.
The square root of 1421112001 is about 37697.6391966394. The cubic root of 1421112001 is about 1124.2841868789.
Adding to 1421112001 its reverse (1002111241), we get a palindrome (2423223242).
The spelling of 1421112001 in words is "one billion, four hundred twenty-one million, one hundred twelve thousand, one".
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