21551938 is an even 8-digits composite number following 21551937
and preceding 21551939 . In scientific notation, it is written as 2.1551938 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 10769220 positive integers (up to 21551938) that are relatively prime to 21551938.
21551938 has 8 divisors, whose sum is 32348160
The reverse of 21551938 is 83915512
Previous prime number is 4159
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million five hundred fifty-one thousand nine hundred thirty-eight
Scientific notation
2.1551938 × 10^7
Engineering notation
2.1551938 × 10^6
Prime Factorization
2 × 4159 × 2591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551938
Product of the distinct prime numbers
The prime factorization of 21551938 is 2 × 4159 × 2591.
Since it has a total of 3 prime factors.
6 , 6 , 39 , 33 , 904 , 626 , 788 , 9988 , 33306 , 66263 , 452469 , 229294 , 2532684 , 4553267 , 46424399 , 91213045 , 118764357 , 762115027 , 8926142322 , 8245205503
n×2
43103876
n×3
64655814
n×4
86207752
n×5
107759690
n÷2
10775969
n÷3
7183979.3333333
n÷3
5387984.5
n÷5
4310387.6
n2
464486031555844
n3
1.0010574153958E+22
n4
2.157472735105E+29
n5
4.6497718623673E+36
2 √n
4642.4064880189
3 √n
278.28861732395
4 √n
68.135207404241
5 √n
29.288509157417
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
-21551937
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 21551938 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551938) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101101101000010
3
Ternary
1111112221200221
4
Quaternary
1102031231002
5
Quinary
21004130223
6
Senary
2045533254
8
Octal
122155502
10
Decimal
21551938
12
Duodecimal
727422a
16
Hexadecimal
148db42
20
Vigesimal
6edjgi
36
Base36
ctxky
md5
48fdcf4a16f8b2a8b80765b4ec6e6d87
sha1
0ff750e39543bffc1312dcfbef8e89c60a0bbc2f
sha256
0a1cd0bbbde7315b82200c424e9eeef7898dd11817ed2320d17a2b973403bf85
sha512
01f1e1eb5ad53597d645dcd6fbaa50fe86289bf7c376a5547bb0d867c8f89e85e7324b6dd39a3a8a25b2164c6e61f416654a425431dc1d917ae102343f3fac00
ripemd-160
b24b4e589a6ef47eda9f145860afbff0efc1445c
Diameter
43103876
Circumference
135414820.18285
Area
1.4592259044309E+15
Volume
4.1932194960385E+22
Surface area
5.8369036177237E+15
Circumference
135414820.18285
Perimeter
86207752
Area
464486031555844
Diagonal
30479043.015024
Surface area
2786916189335064
Volume
1.0010574153958E+22
Space diagonal
37329051.617574
Perimeter
64655814
Area
2.0112835151519E+14
Altitude
18664525.808787
Surface area
2.0112835151519E+14
Volume
1.1797574779724E+21
Height
10159681.005008