21991330 is an even 8-digits composite number following 21991329
and preceding 21991331 . In scientific notation, it is written as 2.1991330 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 8796528 positive integers (up to 21991330) that are relatively prime to 21991330.
21991330 has 8 divisors, whose sum is 39584412
The reverse of 21991330 is 03319912
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million nine hundred ninety-one thousand three hundred thirty
Scientific notation
2.1991330 × 10^7
Engineering notation
2.1991330 × 10^6
Prime Factorization
2 × 5 × 2199133
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21991330
Product of the distinct prime numbers
The prime factorization of 21991330 is 2 × 5 × 2199133.
Since it has a total of 3 prime factors.
7 , 2 , 31 , 3 , 569 , 406 , 3703 , 3516 , 24383 , 94923 , 70614 , 571777 , 6224224 , 9631404 , 53562502 , 79473889 , 188806018 , 882635552 , 7006439871 , 4989708849
n×2
43982660
n×3
65973990
n×4
87965320
n×5
109956650
n÷2
10995665
n÷3
7330443.3333333
n÷3
5497832.5
n÷5
4398266
n2
483618595168900
n3
1.0635416120496E+22
n4
2.3388694559314E+29
n5
5.1434850032308E+36
2 √n
4689.4914436429
3 √n
280.1671196216
4 √n
68.479861591879
5 √n
29.406971395981
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
-21991329
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 21991330 can be divided by 8 positive divisors.
The sum of these divisors (counting 21991330) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111000111110100010
3
Ternary
1112101021102201
4
Quaternary
1103320332202
5
Quinary
21112210310
6
Senary
2103203414
8
Octal
123707642
10
Decimal
21991330
12
Duodecimal
744656a
16
Hexadecimal
14f8fa2
20
Vigesimal
6h8i6a
36
Base36
d3cma
md5
4f861d2d1e7a65529bfec4a7b0bac0c0
sha1
352e7f02f99debdd05b4ef88740b766124aed371
sha256
9d8317e3f94d25f0c3cc62a71e803578a2927678f7deea4097edf692d33ae6d6
sha512
9935f2ef9c4b6b2f303a31b6a183a9082c037819be30bb348844b94150db7b713005a020bd1af43ae2f6bb128de1b650f71d040e199eb511b56a4794e073af38
ripemd-160
7464b67b85aa46ebb4be2acc1be7a3e1210f1af7
Diameter
43982660
Circumference
138175601.54134
Area
1.519332625722E+15
Volume
4.454952686936E+22
Surface area
6.0773305028881E+15
Circumference
138175601.54134
Perimeter
87965320
Area
483618595168900
Diagonal
31100437.140622
Surface area
2901711571013400
Volume
1.0635416120496E+22
Space diagonal
38090100.886014
Perimeter
65973990
Area
2.094129945794E+14
Altitude
19045050.443007
Surface area
2.094129945794E+14
Volume
1.2533958099239E+21
Height
10366812.380207