21993889 is an odd 8-digits composite number following 21993888
and preceding 21993890 . In scientific notation, it is written as 2.1993889 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 21588336 positive integers (up to 21993889) that are relatively prime to 21993889.
21993889 has 8 divisors, whose sum is 22401920
The reverse of 21993889 is 98839912
Previous prime number is 709
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-one million nine hundred ninety-three thousand eight hundred eighty-nine
Scientific notation
2.1993889 × 10^7
Engineering notation
2.1993889 × 10^6
Prime Factorization
67 × 709 × 463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21993889
Product of the distinct prime numbers
The prime factorization of 21993889 is 67 × 709 × 463.
Since it has a total of 3 prime factors.
9 , 6 , 45 , 33 , 904 , 389 , 2927 , 7963 , 18358 , 92186 , 713311 , 862577 , 6339040 , 3964078 , 62262902 , 26161130 , 950254897 , 137871130 , 26106826 , 3055471954
n×2
43987778
n×3
65981667
n×4
87975556
n×5
109969445
n÷2
10996944.5
n÷3
7331296.3333333
n÷3
5498472.25
n÷5
4398777.8
n2
483731153344321
n3
1.0639129292497E+22
n4
2.3399582871583E+29
n5
5.1464782832389E+36
2 √n
4689.7642797906
3 √n
280.17798632606
4 √n
68.48185365329
5 √n
29.407655746926
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
-21993888
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 21993889 can be divided by 8 positive divisors.
The sum of these divisors (counting 21993889) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111001100110100001
3
Ternary
1112101101221111
4
Quaternary
1103321212201
5
Quinary
21112301024
6
Senary
2103223321
8
Octal
123714641
10
Decimal
21993889
12
Duodecimal
7447b41
16
Hexadecimal
14f99a1
20
Vigesimal
6h94e9
36
Base36
d3eld
md5
2822d266bd6f71798355da1960686c2b
sha1
922f5485a11e55b5496243e61f111ac797d9ee82
sha256
6376e46a55c720f14d1e85832901153524f0b7add6643d37d81e33f3a0f701af
sha512
c617e6ca46685359dee30625c6afe100c275e6571048f4bf7b2049460a8d45608e3190fc8a518bf5fd31c165d948c225a5550904427e0c48fd91526abe40b33d
ripemd-160
5b16fefd3cc7cbe1b2f0086ca403f202c33e7f2f
Diameter
43987778
Circumference
138191680.21254
Area
1.519686237659E+15
Volume
4.4565080567867E+22
Surface area
6.0787449506361E+15
Circumference
138191680.21254
Perimeter
87975556
Area
483731153344321
Diagonal
31104056.113128
Surface area
2902386920065926
Volume
1.0639129292497E+22
Space diagonal
38094533.20403
Perimeter
65981667
Area
2.0946173369906E+14
Altitude
19047266.602015
Surface area
2.0946173369906E+14
Volume
1.2538334114408E+21
Height
10368018.704376