21869919 is an odd 8-digits composite number following 21869918
and preceding 21869920 . In scientific notation, it is written as 2.1869919 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 14399856 positive integers (up to 21869919) that are relatively prime to 21869919.
21869919 has 16 divisors, whose sum is 30613632
The reverse of 21869919 is 91996812
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million eight hundred sixty-nine thousand nine hundred nineteen
Scientific notation
2.1869919 × 10^7
Engineering notation
2.1869919 × 10^6
Prime Factorization
27 × 3 × 83 × 3253
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21869919
Product of the distinct prime numbers
The prime factorization of 21869919 is 27 × 3 × 83 × 3253.
Since it has a total of 4 prime factors.
9 , 1 , 81 , 44 , 796 , 534 , 7556 , 6341 , 85649 , 89012 , 60199 , 216669 , 150295 , 1915786 , 25774875 , 91226112 , 470060023 , 193627875 , 2225786467 , 5340755420
n×2
43739838
n×3
65609757
n×4
87479676
n×5
109349595
n÷2
10934959.5
n÷3
7289973
n÷3
5467479.75
n÷5
4373983.8
n2
478293357066561
n3
1.0460236977284E+22
n4
2.28764535414E+29
n5
5.0030618595768E+36
2 √n
4676.5285201739
3 √n
279.65058028736
4 √n
68.385148388915
5 √n
29.374429111945
1 , 3 , 27 , 81 , 83 , 249 , 2241 , 3253 , 6723 , 9759 , 87831 , 263493 , 269999 , 809997 , 7289973 , 21869919
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21869918
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21869919 can be divided by 16 positive divisors.
The sum of these divisors (counting 21869919) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011011010101011111
3
Ternary
1112011002220000
4
Quaternary
1103123111133
5
Quinary
21044314134
6
Senary
2100425343
8
Octal
123332537
10
Decimal
21869919
12
Duodecimal
73a8253
16
Hexadecimal
14db55f
20
Vigesimal
6gdefj
36
Base36
d0qxr
md5
0783217d566fc49786b7e56b04bb048d
sha1
c18ea2ac9bb446be603e64b2925e37083d526fea
sha256
55f1d04d2937b80aa123ebd62c64ad7807dc3f23d799dabe874cb07c770da9f6
sha512
9a6174042cc85d02e882d0a0c904c8043cd717199f6833e7fe6ff8f80c0217768577544db3f50423c7343215d96683d0adc3f13ddc2a855a4d09a0957d1eb2d8
ripemd-160
e53355afff18aca643210dc875c44183386e94a5
Diameter
43739838
Circumference
137412753.73001
Area
1.5026028968211E+15
Volume
4.3815738190191E+22
Surface area
6.0104115872844E+15
Circumference
137412753.73001
Perimeter
87479676
Area
478293357066561
Diagonal
30928736.057801
Surface area
2869760142399366
Volume
1.0460236977284E+22
Space diagonal
37879810.865416
Perimeter
65609757
Area
2.0710709884049E+14
Altitude
18939905.432708
Surface area
2.0710709884049E+14
Volume
1.2327507499093E+21
Height
10309578.685934