21123997 is an odd 8-digits composite number following 21123996
and preceding 21123998 . In scientific notation, it is written as 2.1123997 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20997340 positive integers (up to 21123997) that are relatively prime to 21123997.
21123997 has 4 divisors, whose sum is 21250656
The reverse of 21123997 is 79932112
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million one hundred twenty-three thousand nine hundred ninety-seven
Scientific notation
2.1123997 × 10^7
Engineering notation
2.1123997 × 10^6
Prime Factorization
167 × 126491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21123997
Product of the distinct prime numbers
The prime factorization of 21123997 is 167 × 126491.
Since it has a total of 2 prime factors.
1 , 10 , 15 , 73 , 68 , 7 , 1942 , 7110 , 50046 , 80653 , 637977 , 688921 , 6942072 , 7131334 , 25751965 , 57542269 , 386914175 , 79500405 , 952722756 , 3607476579
n×2
42247994
n×3
63371991
n×4
84495988
n×5
105619985
n÷2
10561998.5
n÷3
7041332.3333333
n÷3
5280999.25
n÷5
4224799.4
n2
446223249256009
n3
9.4260185786142E+21
n4
1.9911518817659E+29
n5
4.2061086376967E+36
2 √n
4596.0849644018
3 √n
276.43436557633
4 √n
67.794431662208
5 √n
29.171262104645
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
-21123996
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 21123997 can be divided by 4 positive divisors.
The sum of these divisors (counting 21123997) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100101001110011101
3
Ternary
1110202012200021
4
Quaternary
1100211032131
5
Quinary
20401431442
6
Senary
2032432141
8
Octal
120451635
10
Decimal
21123997
12
Duodecimal
70a8651
16
Hexadecimal
142539d
20
Vigesimal
6c09jh
36
Base36
ckrdp
md5
bee685e7f5ba9caf5c28706641d7616d
sha1
14157211baa758275bc0b8d77464f05a9ac23b4c
sha256
ed4d687459ad25a625b290b5d2c42dc15eeb2d83f247a5c508c769b384376c9d
sha512
5a3d14782bcf58903a3765692e8eb6651581f7c3cd731f04c9c541b8e042bec56b37c311c49062b18169bed11a3f40727b6eac3cf92eb78dbd7e10a6db393759
ripemd-160
290301bf1adcf85d2105be41fd9c799a2937e864
Diameter
42247994
Circumference
132725987.57931
Area
1.4018516817236E+15
Volume
3.9483614292234E+22
Surface area
5.6074067268946E+15
Circumference
132725987.57931
Perimeter
84495988
Area
446223249256009
Diagonal
29873843.048929
Surface area
2677339495536054
Volume
9.4260185786142E+21
Space diagonal
36587836.062933
Perimeter
63371991
Area
1.9322033480747E+14
Altitude
18293918.031466
Surface area
1.9322033480747E+14
Volume
1.1108669427547E+21
Height
9957947.6829762