21992018 is an even 8-digits composite number following 21992017
and preceding 21992019 . In scientific notation, it is written as 2.1992018 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10911940 positive integers (up to 21992018) that are relatively prime to 21992018.
21992018 has 8 divisors, whose sum is 33240240
The reverse of 21992018 is 81029912
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million nine hundred ninety-two thousand eighteen
Scientific notation
2.1992018 × 10^7
Engineering notation
2.1992018 × 10^6
Prime Factorization
2 × 131 × 83939
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21992018
Product of the distinct prime numbers
The prime factorization of 21992018 is 2 × 131 × 83939.
Since it has a total of 3 prime factors.
1 , 4 , 88 , 75 , 794 , 674 , 2084 , 8697 , 79983 , 18041 , 835032 , 267043 , 9643140 , 2441107 , 44027029 , 13131113 , 543292652 , 614049816 , 1064461766 , 6232400019
n×2
43984036
n×3
65976054
n×4
87968072
n×5
109960090
n÷2
10996009
n÷3
7330672.6666667
n÷3
5498004.5
n÷5
4398403.6
n2
483648855712324
n3
1.0636414340505E+22
n4
2.3391621563184E+29
n5
5.1442896246673E+36
2 √n
4689.5647985714
3 √n
280.17004127251
4 √n
68.480397184679
5 √n
29.40715539343
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21992017
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21992018 can be divided by 8 positive divisors.
The sum of these divisors (counting 21992018) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111001001001010010
3
Ternary
1112101022101012
4
Quaternary
1103321021102
5
Quinary
21112221033
6
Senary
2103210522
8
Octal
123711122
10
Decimal
21992018
12
Duodecimal
7446a42
16
Hexadecimal
14f9252
20
Vigesimal
6h900i
36
Base36
d3d5e
md5
e411424e149959f081022e226b25e0ac
sha1
dd698c73d5d17160ae0f1a7745438c8875e3873e
sha256
5c491c725a7a0d38dd72ef7da2de160f3a78b8741ca1a930c6636c23e8d3d3a6
sha512
40e6178348afa366e71446767abba811927a301d07c4e8307af80de98ebc1c17ba0d9f32a87794995be93f788f415a06f3713c379e57057a9f4944f43016b996
ripemd-160
a0163dd7219da09768762fa1b8963bc6675b64c1
Diameter
43984036
Circumference
138179924.37283
Area
1.5194276920229E+15
Volume
4.4553708203556E+22
Surface area
6.0777107680918E+15
Circumference
138179924.37283
Perimeter
87968072
Area
483648855712324
Diagonal
31101410.119553
Surface area
2901893134273944
Volume
1.0636414340505E+22
Space diagonal
38091292.536969
Perimeter
65976054
Area
2.0942609777907E+14
Altitude
19045646.268485
Surface area
2.0942609777907E+14
Volume
1.2535134512801E+21
Height
10367136.706518