Base | Representation |
---|---|
bin | 1111010101001010… |
… | …10001100101110101 |
3 | 210020121100011112111 |
4 | 13222211101211311 |
5 | 113324013412341 |
6 | 3440414251021 |
7 | 410651002264 |
oct | 75245214565 |
9 | 23217304474 |
10 | 8230607221 |
11 | 3543a66031 |
12 | 17184b6a71 |
13 | a122558b5 |
14 | 5811765db |
15 | 33289d681 |
hex | 1ea951975 |
8230607221 has 2 divisors, whose sum is σ = 8230607222. Its totient is φ = 8230607220.
The previous prime is 8230607173. The next prime is 8230607263. The reversal of 8230607221 is 1227060328.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 4994248900 + 3236358321 = 70670^2 + 56889^2 .
It is a cyclic number.
It is not a de Polignac number, because 8230607221 - 213 = 8230599029 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8231607221) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115303610 + 4115303611.
It is an arithmetic number, because the mean of its divisors is an integer number (4115303611).
Almost surely, 28230607221 is an apocalyptic number.
It is an amenable number.
8230607221 is a deficient number, since it is larger than the sum of its proper divisors (1).
8230607221 is an equidigital number, since it uses as much as digits as its factorization.
8230607221 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8064, while the sum is 31.
The square root of 8230607221 is about 90722.6940792655. The cubic root of 8230607221 is about 2019.0355181463.
Adding to 8230607221 its reverse (1227060328), we get a palindrome (9457667549).
The spelling of 8230607221 in words is "eight billion, two hundred thirty million, six hundred seven thousand, two hundred twenty-one".
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