Base | Representation |
---|---|
bin | 101111001011010001… |
… | …0111111010000101101 |
3 | 100200111110122100110111 |
4 | 1132112202333100231 |
5 | 3124440330032341 |
6 | 114312520540021 |
7 | 10214361544651 |
oct | 1362642772055 |
9 | 320443570414 |
10 | 101310002221 |
11 | 39a6894516a |
12 | 17774621611 |
13 | 972703a29c |
14 | 4c91026a61 |
15 | 297e253681 |
hex | 17968bf42d |
101310002221 has 2 divisors, whose sum is σ = 101310002222. Its totient is φ = 101310002220.
The previous prime is 101310002219. The next prime is 101310002273. The reversal of 101310002221 is 122200013101.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 55938872196 + 45371130025 = 236514^2 + 213005^2 .
It is a cyclic number.
It is not a de Polignac number, because 101310002221 - 21 = 101310002219 is a prime.
Together with 101310002219, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (101310002291) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50655001110 + 50655001111.
It is an arithmetic number, because the mean of its divisors is an integer number (50655001111).
Almost surely, 2101310002221 is an apocalyptic number.
It is an amenable number.
101310002221 is a deficient number, since it is larger than the sum of its proper divisors (1).
101310002221 is an equidigital number, since it uses as much as digits as its factorization.
101310002221 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.
Adding to 101310002221 its reverse (122200013101), we get a palindrome (223510015322).
The spelling of 101310002221 in words is "one hundred one billion, three hundred ten million, two thousand, two hundred twenty-one".
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