21531143 is an odd 8-digits composite number following 21531142
and preceding 21531144 . In scientific notation, it is written as 2.1531143 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 20706840 positive integers (up to 21531143) that are relatively prime to 21531143.
21531143 has 8 divisors, whose sum is 22364160
The reverse of 21531143 is 34113512
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million five hundred thirty-one thousand one hundred forty-three
Scientific notation
2.1531143 × 10^7
Engineering notation
2.1531143 × 10^6
Prime Factorization
31 × 167 × 4159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21531143
Product of the distinct prime numbers
The prime factorization of 21531143 is 31 × 167 × 4159.
Since it has a total of 3 prime factors.
7 , 2 , 86 , 68 , 657 , 496 , 310 , 3658 , 52677 , 19297 , 551434 , 162158 , 1428156 , 8865588 , 78755691 , 99553506 , 436731612 , 395297963 , 632121342 , 473922845
n×2
43062286
n×3
64593429
n×4
86124572
n×5
107655715
n÷2
10765571.5
n÷3
7177047.6666667
n÷3
5382785.75
n÷5
4306228.6
n2
463590118886449
n3
9.9816251431311E+21
n4
2.1491579832915E+29
n5
4.6273827867841E+36
2 √n
4640.1662685727
3 √n
278.1990836271
4 √n
68.11876590612
5 √n
29.282855004648
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
-21531142
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 21531143 can be divided by 8 positive divisors.
The sum of these divisors (counting 21531143) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001000101000000111
3
Ternary
1111111220011202
4
Quaternary
1102020220013
5
Quinary
21002444033
6
Senary
2045253115
8
Octal
122105007
10
Decimal
21531143
12
Duodecimal
726419b
16
Hexadecimal
1488a07
20
Vigesimal
6eb7h3
36
Base36
cthjb
md5
9af1d2829038b7d37ea65c52d914aced
sha1
1ba83ac38ddef3eb92603e61beecd85303b35e72
sha256
7617b315600b7f4ea41fdcdd2a61de55c1d64d0e0d72a2beb2e44b9cd0feb0db
sha512
b1c7c6606696b39c6264b8a07f6530efacfe189ae24cdca50ed9a609978287a286a679f2b9900b6b2b77ef8c2a4769c0e8ec2e7a50d47b8bf969c3e1bdd477c0
ripemd-160
a9f783df3784512ab5f37cb5a7d13769e307ee67
Diameter
43062286
Circumference
135284161.34438
Area
1.4564113117705E+15
Volume
4.1810933627397E+22
Surface area
5.8256452470819E+15
Circumference
135284161.34438
Perimeter
86124572
Area
463590118886449
Diagonal
30449634.443995
Surface area
2781540713318694
Volume
9.9816251431311E+21
Space diagonal
37293033.621031
Perimeter
64593429
Area
2.0074040994956E+14
Altitude
18646516.810515
Surface area
2.0074040994956E+14
Volume
1.1763458043284E+21
Height
10149878.147998