Base | Representation |
---|---|
bin | 11100001000101111… |
… | …000101100010101111 |
3 | 2212222110221200202021 |
4 | 130020233011202233 |
5 | 443333100113041 |
6 | 21513501411011 |
7 | 2116444041631 |
oct | 341057054257 |
9 | 85873850667 |
10 | 30211332271 |
11 | 118a35670aa |
12 | 5a31869a67 |
13 | 2b060b9493 |
14 | 166853aa51 |
15 | bbc470cd1 |
hex | 708bc58af |
30211332271 has 2 divisors, whose sum is σ = 30211332272. Its totient is φ = 30211332270.
The previous prime is 30211332253. The next prime is 30211332329. The reversal of 30211332271 is 17223311203.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30211332271 - 223 = 30202943663 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30211332211) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105666135 + 15105666136.
It is an arithmetic number, because the mean of its divisors is an integer number (15105666136).
Almost surely, 230211332271 is an apocalyptic number.
30211332271 is a deficient number, since it is larger than the sum of its proper divisors (1).
30211332271 is an equidigital number, since it uses as much as digits as its factorization.
30211332271 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1512, while the sum is 25.
Adding to 30211332271 its reverse (17223311203), we get a palindrome (47434643474).
The spelling of 30211332271 in words is "thirty billion, two hundred eleven million, three hundred thirty-two thousand, two hundred seventy-one".
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