Base | Representation |
---|---|
bin | 1111011010000110… |
… | …10010110001010101 |
3 | 210100111021201000022 |
4 | 13231003102301111 |
5 | 113420114441210 |
6 | 3444454154525 |
7 | 411663046613 |
oct | 75503226125 |
9 | 23314251008 |
10 | 8272030805 |
11 | 35653891a5 |
12 | 172a352a45 |
13 | a1a9ca3ac |
14 | 58687a6b3 |
15 | 336332155 |
hex | 1ed0d2c55 |
8272030805 has 8 divisors (see below), whose sum is σ = 9927167544. Its totient is φ = 6617137600.
The previous prime is 8272030801. The next prime is 8272030841. The reversal of 8272030805 is 5080302728.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 54789604 + 8217241201 = 7402^2 + 90649^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 8272030805 - 22 = 8272030801 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8272030801) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24815 + ... + 130995.
It is an arithmetic number, because the mean of its divisors is an integer number (1240895943).
Almost surely, 28272030805 is an apocalyptic number.
It is an amenable number.
8272030805 is a deficient number, since it is larger than the sum of its proper divisors (1655136739).
8272030805 is a wasteful number, since it uses less digits than its factorization.
8272030805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 121767.
The product of its (nonzero) digits is 26880, while the sum is 35.
The square root of 8272030805 is about 90950.7053573528. The cubic root of 8272030805 is about 2022.4170333020.
The spelling of 8272030805 in words is "eight billion, two hundred seventy-two million, thirty thousand, eight hundred five".
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