21881344 is an even 8-digits composite number following 21881343
and preceding 21881345 . In scientific notation, it is written as 2.1881344 × 10^7.
The sum of its digits is 31. It has a total of 10 prime factors and 20 positive divisors.
There are 10940416 positive integers (up to 21881344) that are relatively prime to 21881344.
21881344 has 20 divisors, whose sum is 43720974
The reverse of 21881344 is 44318812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eight hundred eighty-one thousand three hundred forty-four
Scientific notation
2.1881344 × 10^7
Engineering notation
2.1881344 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 42737
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
10
Total number of prime factors
rad
Radical
85474
Product of the distinct prime numbers
The prime factorization of 21881344 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 42737.
Since it has a total of 10 prime factors.
3 , 1 , 63 , 29 , 663 , 448 , 1808 , 9560 , 70082 , 90565 , 300656 , 253001 , 8138013 , 1027032 , 24517048 , 78699515 , 508995353 , 688831380 , 1920795446 , 9282828135
n×2
43762688
n×3
65644032
n×4
87525376
n×5
109406720
n÷2
10940672
n÷3
7293781.3333333
n÷3
5470336
n÷5
4376268.8
n2
478793215246336
n3
1.0476639047671E+22
n4
2.2924294296592E+29
n5
5.0161436946098E+36
2 √n
4677.7498864304
3 √n
279.69926895537
4 √n
68.394077860809
5 √n
29.377497552628
1 , 2 , 4 , 8 , 16 , 32 , 64 , 128 , 256 , 512 , 42737 , 85474 , 170948 , 341896 , 683792 , 1367584 , 2735168 , 5470336 , 10940672 , 21881344
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21881343
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21881344 can be divided by 20 positive divisors.
The sum of these divisors (counting 21881344) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010011011110001000000000
3
Ternary
1112011200120011
4
Quaternary
1103132020000
5
Quinary
21100200334
6
Senary
2100554304
8
Octal
123361000
10
Decimal
21881344
12
Duodecimal
73b2994
16
Hexadecimal
14de200
20
Vigesimal
6gf374
36
Base36
d0zr4
md5
d6453c665c104f51750b2631cfc704a8
sha1
49463e2e8ff2cc416e1ab2efa9899ff9262e191a
sha256
c39fe557c78fb34996674229b33286f67d062c01c41ee2073e6f852baee2c0a9
sha512
e75377686fa0f67861eafc702b5414fdb6c94a872937bf77bdc97efd27d0e869d21e73d0578df0f42f5c99c259bf2ef1b6239f791a527d9dcaf9b4bbecbcea11
ripemd-160
242718aefa9262c5aaeb92f9c17d6b4e5fd06af0
Diameter
43762688
Circumference
137484539.12214
Area
1.5041732476065E+15
Volume
4.3884443021967E+22
Surface area
6.0166929904261E+15
Circumference
137484539.12214
Perimeter
87525376
Area
478793215246336
Diagonal
30944893.447751
Surface area
2872759291478016
Volume
1.0476639047671E+22
Space diagonal
37899599.545892
Perimeter
65644032
Area
2.0732354378148E+14
Altitude
18949799.772946
Surface area
2.0732354378148E+14
Volume
1.234683752442E+21
Height
10314964.482584