Base | Representation |
---|---|
bin | 11100001000001000… |
… | …011111010100110101 |
3 | 2212221202220122110011 |
4 | 130020020133110311 |
5 | 443323002324021 |
6 | 21512500500221 |
7 | 2116262041231 |
oct | 341010372465 |
9 | 85852818404 |
10 | 30201214261 |
11 | 11898886309 |
12 | 5a2a3aa671 |
13 | 2b03c85caa |
14 | 16670655c1 |
15 | bbb622de1 |
hex | 70821f535 |
30201214261 has 2 divisors, whose sum is σ = 30201214262. Its totient is φ = 30201214260.
The previous prime is 30201214259. The next prime is 30201214301. The reversal of 30201214261 is 16241210203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18253631236 + 11947583025 = 135106^2 + 109305^2 .
It is a cyclic number.
It is not a de Polignac number, because 30201214261 - 21 = 30201214259 is a prime.
It is a super-2 number, since 2×302012142612 (a number of 22 digits) contains 22 as substring.
Together with 30201214259, 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 (30201214201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15100607130 + 15100607131.
It is an arithmetic number, because the mean of its divisors is an integer number (15100607131).
Almost surely, 230201214261 is an apocalyptic number.
It is an amenable number.
30201214261 is a deficient number, since it is larger than the sum of its proper divisors (1).
30201214261 is an equidigital number, since it uses as much as digits as its factorization.
30201214261 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 22.
Adding to 30201214261 its reverse (16241210203), we get a palindrome (46442424464).
The spelling of 30201214261 in words is "thirty billion, two hundred one million, two hundred fourteen thousand, two hundred sixty-one".
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