21371187 is an odd 8-digits composite number following 21371186
and preceding 21371188 . In scientific notation, it is written as 2.1371187 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14247456 positive integers (up to 21371187) that are relatively prime to 21371187.
21371187 has 4 divisors, whose sum is 28494920
The reverse of 21371187 is 78117312
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million three hundred seventy-one thousand one hundred eighty-seven
Scientific notation
2.1371187 × 10^7
Engineering notation
2.1371187 × 10^6
Prime Factorization
3 × 7123729
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21371187
Product of the distinct prime numbers
The prime factorization of 21371187 is 3 × 7123729.
Since it has a total of 2 prime factors.
6 , 5 , 26 , 17 , 148 , 408 , 4629 , 5546 , 50864 , 74137 , 677609 , 725975 , 9236207 , 3054234 , 68858964 , 5027482 , 494006012 , 925434039 , 4748966004 , 5760893233
n×2
42742374
n×3
64113561
n×4
85484748
n×5
106855935
n÷2
10685593.5
n÷3
7123729
n÷3
5342796.75
n÷5
4274237.4
n2
456727633788969
n3
9.7608116697716E+21
n4
2.0860013146647E+29
n5
4.4580324177945E+36
2 √n
4622.8981169825
3 √n
277.50845197859
4 √n
67.991897436257
5 √n
29.239216358043
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
-21371186
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 21371187 can be divided by 4 positive divisors.
The sum of these divisors (counting 21371187) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100001100100110011
3
Ternary
1111012202202110
4
Quaternary
1101201210303
5
Quinary
20432334222
6
Senary
2042020403
8
Octal
121414463
10
Decimal
21371187
12
Duodecimal
71a7703
16
Hexadecimal
1461933
20
Vigesimal
6db7j7
36
Base36
cq243
md5
b55b9533ecceeda012a828a8d13e91e7
sha1
ba37bf8ffef9f42574b2930f2f59300494652a06
sha256
4e3a81db262c6d21d0ecde11a04ab8b6ed76a6083d0731b878d6588b795605e9
sha512
76e86a94d37581abd06e98ad93607129c54bf8ff3464543515daea3be4fe828a942c8b3fb60fa81c55113d7ae64d645e2e1a8df8eb56870d3ddf7c39f1ce54ce
ripemd-160
9661e15efceed9bd69591366a4c9caf30edd799a
Diameter
42742374
Circumference
134279128.15539
Area
1.4348521790029E+15
Volume
4.0885992313104E+22
Surface area
5.7394087160115E+15
Circumference
134279128.15539
Perimeter
85484748
Area
456727633788969
Diagonal
30223422.499412
Surface area
2740365802733814
Volume
9.7608116697716E+21
Space diagonal
37015981.702055
Perimeter
64113561
Area
1.977688667358E+14
Altitude
18507990.851028
Surface area
1.977688667358E+14
Volume
1.15032268693E+21
Height
10074474.166471