21991323 is an odd 8-digits composite number following 21991322
and preceding 21991324 . In scientific notation, it is written as 2.1991323 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 14459904 positive integers (up to 21991323) that are relatively prime to 21991323.
21991323 has 8 divisors, whose sum is 29723728
The reverse of 21991323 is 32319912
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million nine hundred ninety-one thousand three hundred twenty-three
Scientific notation
2.1991323 × 10^7
Engineering notation
2.1991323 × 10^6
Prime Factorization
3 × 73 × 100417
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21991323
Product of the distinct prime numbers
The prime factorization of 21991323 is 3 × 73 × 100417.
Since it has a total of 3 prime factors.
8 , 5 , 82 , 81 , 195 , 125 , 5139 , 7469 , 42109 , 60976 , 287794 , 685562 , 5709755 , 3486413 , 56066188 , 38175182 , 728307599 , 221626589 , 8576556695 , 7388650219
n×2
43982646
n×3
65973969
n×4
87965292
n×5
109956615
n÷2
10995661.5
n÷3
7330441
n÷3
5497830.75
n÷5
4398264.6
n2
483618287290329
n3
1.0635405964508E+22
n4
2.3388664780163E+29
n5
5.1434768171929E+36
2 √n
4689.4906972933
3 √n
280.16708989518
4 √n
68.479856142469
5 √n
29.40696952389
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
-21991322
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 21991323 can be divided by 8 positive divisors.
The sum of these divisors (counting 21991323) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111000111110011011
3
Ternary
1112101021102110
4
Quaternary
1103320332123
5
Quinary
21112210243
6
Senary
2103203403
8
Octal
123707633
10
Decimal
21991323
12
Duodecimal
7446563
16
Hexadecimal
14f8f9b
20
Vigesimal
6h8i63
36
Base36
d3cm3
md5
11d311e2b45e71a347adc295363cb595
sha1
22289befcb306e9c53c659e783ca661ba1458241
sha256
95440508a75d09e497248120b8f7613d3b2be8ac99dd88f9a9e4f66ad2b83f07
sha512
8f27ed6adc8e5148cc12751cad668dcdfd2cc9f1461c4900334750057cdc7698342d6d9a989e3cd4ec53d37866433c4bdd1b39eaaa25389a27ab1f28635977ff
ripemd-160
38af0e3a1191547a48436d4e63c700ba08c9b8f9
Diameter
43982646
Circumference
138175557.55904
Area
1.519331658493E+15
Volume
4.454948432806E+22
Surface area
6.0773266339719E+15
Circumference
138175557.55904
Perimeter
87965292
Area
483618287290329
Diagonal
31100427.241127
Surface area
2901709723741974
Volume
1.0635405964508E+22
Space diagonal
38090088.761658
Perimeter
65973969
Area
2.0941286126407E+14
Altitude
19045044.380829
Surface area
2.0941286126407E+14
Volume
1.2533946130293E+21
Height
10366809.080376