21308923 is an odd 8-digits composite number following 21308922
and preceding 21308924 . In scientific notation, it is written as 2.1308923 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21247168 positive integers (up to 21308923) that are relatively prime to 21308923.
21308923 has 4 divisors, whose sum is 21370680
The reverse of 21308923 is 32980312
Previous prime number is 347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million three hundred eight thousand nine hundred twenty-three
Scientific notation
2.1308923 × 10^7
Engineering notation
2.1308923 × 10^6
Prime Factorization
347 × 61409
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21308923
Product of the distinct prime numbers
The prime factorization of 21308923 is 347 × 61409.
Since it has a total of 2 prime factors.
10 , 8 , 8 , 2 , 863 , 257 , 134 , 2201 , 9811 , 73693 , 985142 , 83473 , 1652981 , 2971041 , 43913076 , 83744249 , 878390860 , 43525540 , 5269936863 , 3699116320
n×2
42617846
n×3
63926769
n×4
85235692
n×5
106544615
n÷2
10654461.5
n÷3
7102974.3333333
n÷3
5327230.75
n÷5
4261784.6
n2
454070199419929
n3
9.6757469160339E+21
n4
2.0617974600125E+29
n5
4.3934683317003E+36
2 √n
4616.1589010778
3 √n
277.23868699406
4 √n
67.942320398098
5 √n
29.222159037634
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21308922
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308923 can be divided by 4 positive divisors.
The sum of these divisors (counting 21308923) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001010010010111111011
3
Ternary
1111002121100101
4
Quaternary
1101102113323
5
Quinary
20423341143
6
Senary
2040420231
8
Octal
121222773
10
Decimal
21308923
12
Duodecimal
7177677
16
Hexadecimal
14525fb
20
Vigesimal
6d3c63
36
Base36
coq2j
md5
14362227a9cb50f1e4d451cb9d7dfe3d
sha1
ff240de7d9e25f711a6a79ef955ee75f2b552db8
sha256
3a13de458b9f1c20791277f30c4b4dacbdba9e3b4b65fc793f7c9d2cd90f208f
sha512
604c407a59ca143fd6e97a5b6754483b96b82dc0119f50ab4dd5b024b60dc0fcc0b140a34c3f29f1b2cf29183c4d3b508e46fbc40cbbf03bc1be5b76204ed3a6
ripemd-160
ad95a134ffdc68b385fe058ecb61e95c4a6c2cea
Diameter
42617846
Circumference
133887911.90542
Area
1.4265036027117E+15
Volume
4.0529673905875E+22
Surface area
5.7060144108468E+15
Circumference
133887911.90542
Perimeter
85235692
Area
454070199419929
Diagonal
30135367.906164
Surface area
2724421196519574
Volume
9.6757469160339E+21
Space diagonal
36908137.290573
Perimeter
63926769
Area
1.9661816389956E+14
Altitude
18454068.645287
Surface area
1.9661816389956E+14
Volume
1.1402977095621E+21
Height
10045122.635388