Base | Representation |
---|---|
bin | 1111001111011001… |
… | …01101000000000000 |
3 | 210010020021222122200 |
4 | 13213230231000000 |
5 | 113224122112343 |
6 | 3431525233200 |
7 | 406522514052 |
oct | 74754550000 |
9 | 23106258580 |
10 | 8182222848 |
11 | 3519719148 |
12 | 1704262800 |
13 | a052149a7 |
14 | 57897d8d2 |
15 | 32d4e24d3 |
hex | 1e7b2d000 |
8182222848 has 78 divisors (see below), whose sum is σ = 23634753714. Its totient is φ = 2727395328.
The previous prime is 8182222817. The next prime is 8182222849. The reversal of 8182222848 is 8482222818.
It can be written as a sum of positive squares in only one way, i.e., 6076514304 + 2105708544 = 77952^2 + 45888^2 .
It is a super-2 number, since 2×81822228482 (a number of 21 digits) contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8182222849) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74115 + ... + 147842.
It is an arithmetic number, because the mean of its divisors is an integer number (303009663).
Almost surely, 28182222848 is an apocalyptic number.
It is an amenable number.
8182222848 is an abundant number, since it is smaller than the sum of its proper divisors (15452530866).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8182222848 is a wasteful number, since it uses less digits than its factorization.
8182222848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 221987 (or 221962 counting only the distinct ones).
The product of its digits is 262144, while the sum is 45.
The square root of 8182222848 is about 90455.6402221553. The cubic root of 8182222848 is about 2015.0713788194.
The spelling of 8182222848 in words is "eight billion, one hundred eighty-two million, two hundred twenty-two thousand, eight hundred forty-eight".
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