21931489 is an odd 8-digits composite number following 21931488
and preceding 21931490 . In scientific notation, it is written as 2.1931489 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 20977924 positive integers (up to 21931489) that are relatively prime to 21931489.
21931489 has 4 divisors, whose sum is 22885056
The reverse of 21931489 is 98413912
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million nine hundred thirty-one thousand four hundred eighty-nine
Scientific notation
2.1931489 × 10^7
Engineering notation
2.1931489 × 10^6
Prime Factorization
23 × 953543
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21931489
Product of the distinct prime numbers
The prime factorization of 21931489 is 23 × 953543.
Since it has a total of 2 prime factors.
5 , 8 , 73 , 97 , 845 , 459 , 5813 , 4677 , 28226 , 67901 , 124989 , 548575 , 5265169 , 9438251 , 60248290 , 83822979 , 614337872 , 752443341 , 3158619859 , 4515826484
n×2
43862978
n×3
65794467
n×4
87725956
n×5
109657445
n÷2
10965744.5
n÷3
7310496.3333333
n÷3
5482872.25
n÷5
4386297.8
n2
480990209757121
n3
1.0548831494396E+22
n4
2.313515818822E+29
n5
5.0738846731821E+36
2 √n
4683.106767948
3 √n
279.91276619254
4 √n
68.43322853664
5 √n
29.390949981221
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
-21931488
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 21931489 can be divided by 4 positive divisors.
The sum of these divisors (counting 21931489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011101010010111100001
3
Ternary
1112021020100101
4
Quaternary
1103222113201
5
Quinary
21103301424
6
Senary
2102022401
8
Octal
123522741
10
Decimal
21931489
12
Duodecimal
7417a01
16
Hexadecimal
14ea5e1
20
Vigesimal
6h18e9
36
Base36
d22g1
md5
5d67453fd0bd58b7624a2e4888e774f8
sha1
f3bb403d15f8280658fcc66a34b0f5bcbb384539
sha256
e7ff5fdb4477a5af5a5573858b77c5b028425550a6afd58976fbe2e45cfcbe6b
sha512
1aeba612d57676108867ba45b59a91e794a96a76a4ba4a22de2ba097d8429c3d57403f985e6aee030d67b95f26f46ccf216de6645aba892151697eb4e5854724
ripemd-160
49a94f915e7e1c46f66934a04dc144893e371505
Diameter
43862978
Circumference
137799609.44937
Area
1.5110753094216E+15
Volume
4.4186842035668E+22
Surface area
6.0443012376863E+15
Circumference
137799609.44937
Perimeter
87725956
Area
480990209757121
Diagonal
31015809.186836
Surface area
2885941258542726
Volume
1.0548831494396E+22
Space diagonal
37986453.233638
Perimeter
65794467
Area
2.0827487031064E+14
Altitude
18993226.616819
Surface area
2.0827487031064E+14
Volume
1.2431917138803E+21
Height
10338603.062279