21931131 is an odd 8-digits composite number following 21931130
and preceding 21931132 . In scientific notation, it is written as 2.1931131 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 14599592 positive integers (up to 21931131) that are relatively prime to 21931131.
21931131 has 8 divisors, whose sum is 29283840
The reverse of 21931131 is 13113912
Previous prime number is 743
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million nine hundred thirty-one thousand one hundred thirty-one
Scientific notation
2.1931131 × 10^7
Engineering notation
2.1931131 × 10^6
Prime Factorization
3 × 743 × 9839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21931131
Product of the distinct prime numbers
The prime factorization of 21931131 is 3 × 743 × 9839.
Since it has a total of 3 prime factors.
7 , 10 , 18 , 6 , 962 , 745 , 1917 , 1592 , 37490 , 71521 , 184809 , 912953 , 5344729 , 8103354 , 96771095 , 54665700 , 801191500 , 460331785 , 2226849241 , 8710904337
n×2
43862262
n×3
65793393
n×4
87724524
n×5
109655655
n÷2
10965565.5
n÷3
7310377
n÷3
5482782.75
n÷5
4386226.2
n2
480974506939161
n3
1.0548314919343E+22
n4
2.3133647632537E+29
n5
5.0734705673701E+36
2 √n
4683.0685453023
3 √n
279.91124312654
4 √n
68.432949266434
5 √n
29.390854027601
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
-21931130
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 21931131 can be divided by 8 positive divisors.
The sum of these divisors (counting 21931131) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011101010010001111011
3
Ternary
1112021012212010
4
Quaternary
1103222101323
5
Quinary
21103244011
6
Senary
2102021003
8
Octal
123522173
10
Decimal
21931131
12
Duodecimal
7417763
16
Hexadecimal
14ea47b
20
Vigesimal
6h17gb
36
Base36
d2263
md5
7c115626a8d1f799e4b95d46d916f4db
sha1
82c0ac9648ada1b1737f9dd514fe0422123ee7e5
sha256
ee13150a4e8ab449fa4218bf547f166f452cdb010e2251aae6b1b100d598a27c
sha512
5d960d6a458e5d2c04bb62a907e9a8c4a99adbee0c1bebee0986f20fd54d236b8714e6a0e892752a4e712d950cc7fb0b3460fa4ed658419943692e55a6d8c465
ripemd-160
4fa5d601813a39af118c6e139de1da7872eb7d91
Diameter
43862262
Circumference
137797360.06903
Area
1.511025977564E+15
Volume
4.4184678211147E+22
Surface area
6.0441039102562E+15
Circumference
137797360.06903
Perimeter
87724524
Area
480974506939161
Diagonal
31015302.898381
Surface area
2885847041634966
Volume
1.0548314919343E+22
Space diagonal
37985833.159449
Perimeter
65793393
Area
2.08268070791E+14
Altitude
18992916.579724
Surface area
2.08268070791E+14
Volume
1.2431308349265E+21
Height
10338434.29946