21992008 is an even 8-digits composite number following 21992007
and preceding 21992009 . In scientific notation, it is written as 2.1992008 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 10982400 positive integers (up to 21992008) that are relatively prime to 21992008.
21992008 has 16 divisors, whose sum is 41286060
The reverse of 21992008 is 80029912
Previous prime number is 1321
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million nine hundred ninety-two thousand eight
Scientific notation
2.1992008 × 10^7
Engineering notation
2.1992008 × 10^6
Prime Factorization
2 × 2 × 2 × 1321 × 2081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5498002
Product of the distinct prime numbers
The prime factorization of 21992008 is 2 × 2 × 2 × 1321 × 2081.
Since it has a total of 5 prime factors.
6 , 4 , 23 , 91 , 418 , 143 , 9967 , 4508 , 55457 , 64982 , 918826 , 417318 , 7493292 , 7391720 , 42858517 , 52234441 , 954584541 , 636325595 , 8775159820 , 7986737846
n×2
43984016
n×3
65976024
n×4
87968032
n×5
109960040
n÷2
10996004
n÷3
7330669.3333333
n÷3
5498002
n÷5
4398401.6
n2
483648415872064
n3
1.0636399831046E+22
n4
2.3391579017556E+29
n5
5.1442779288672E+36
2 √n
4689.5637323743
3 √n
280.16999880709
4 √n
68.48038939999
5 √n
29.407152719082
1 , 2 , 4 , 8 , 1321 , 2081 , 2642 , 4162 , 5284 , 8324 , 10568 , 16648 , 2749001 , 5498002 , 10996004 , 21992008
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21992007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21992008 can be divided by 16 positive divisors.
The sum of these divisors (counting 21992008) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011111001001001001000
3
Ternary
1112101022100211
4
Quaternary
1103321021020
5
Quinary
21112221013
6
Senary
2103210504
8
Octal
123711110
10
Decimal
21992008
12
Duodecimal
7446a34
16
Hexadecimal
14f9248
20
Vigesimal
6h9008
36
Base36
d3d54
md5
fa550b994a0c605f24301ce45b66b64d
sha1
76dd88ceb332d5f67c2c69516c8ce5263c853625
sha256
750dc01cd1e48bd7affb8aee6dd76047c12707233d5d898df9b8cb7f68c5fb84
sha512
e7b305236972cea94c3636507e2a58337c07d2c5de5b8b6b8ed97fd69aa7a091619ca0155282ac9e1a63cf00e11591eb074cefc9c27f2ff317c04ba06cc75e15
ripemd-160
372ddb13a0826d536c50951ca54488328e989138
Diameter
43984016
Circumference
138179861.54098
Area
1.519426310224E+15
Volume
4.4553647426476E+22
Surface area
6.0777052408961E+15
Circumference
138179861.54098
Perimeter
87968032
Area
483648415872064
Diagonal
31101395.977418
Surface area
2901890495232384
Volume
1.0636399831046E+22
Space diagonal
38091275.216461
Perimeter
65976024
Area
2.0942590732265E+14
Altitude
19045637.608231
Surface area
2.0942590732265E+14
Volume
1.253511741324E+21
Height
10367131.992473