21749917 is an odd 8-digits composite number following 21749916
and preceding 21749918 . In scientific notation, it is written as 2.1749917 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 18642780 positive integers (up to 21749917) that are relatively prime to 21749917.
21749917 has 4 divisors, whose sum is 24857056
The reverse of 21749917 is 71994712
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million seven hundred forty-nine thousand nine hundred seventeen
Scientific notation
2.1749917 × 10^7
Engineering notation
2.1749917 × 10^6
Prime Factorization
7 × 3107131
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21749917
Product of the distinct prime numbers
The prime factorization of 21749917 is 7 × 3107131.
Since it has a total of 2 prime factors.
8 , 6 , 83 , 68 , 345 , 84 , 8035 , 7064 , 37761 , 64564 , 508118 , 229298 , 8604591 , 9751668 , 72806465 , 1091149 , 562529564 , 491948979 , 2014129237 , 800709336
n×2
43499834
n×3
65249751
n×4
86999668
n×5
108749585
n÷2
10874958.5
n÷3
7249972.3333333
n÷3
5437479.25
n÷5
4349983.4
n2
473058889506889
n3
1.0288991582887E+22
n4
2.2378471294149E+29
n5
4.8672989323463E+36
2 √n
4663.6806280019
3 √n
279.13815350973
4 √n
68.291146043992
5 √n
29.342122155768
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
-21749916
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 21749917 can be divided by 4 positive divisors.
The sum of these divisors (counting 21749917) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010111110000010011101
3
Ternary
1111221000021111
4
Quaternary
1102332002131
5
Quinary
21031444132
6
Senary
2054102021
8
Octal
122760235
10
Decimal
21749917
12
Duodecimal
734a911
16
Hexadecimal
14be09d
20
Vigesimal
6fiefh
36
Base36
cy6cd
md5
c1a9e3b4c192e0d27a65148e3b1ce521
sha1
2f0d905561fc98d0509268c4d5ac49188241b02d
sha256
1ecc7de4f0a8f4c9aa2c533c24c117889a4d8abb0bd63d4043787cd40d308d6e
sha512
20dc785cbd83dacce7e9de1c013f89e74c003c57f4206ce477997c6a79026af466cb8a48cd067d06bd130143987081e00562320957554e873bd0a42f40f14223
ripemd-160
80fad5b550ddeff09e219f8faf912e966007c26b
Diameter
43499834
Circumference
136658758.92678
Area
1.4861583319902E+15
Volume
4.3098427159527E+22
Surface area
5.9446333279608E+15
Circumference
136658758.92678
Perimeter
86999668
Area
473058889506889
Diagonal
30759027.601889
Surface area
2838353337041334
Volume
1.0288991582887E+22
Space diagonal
37671961.304406
Perimeter
65249751
Area
2.0484050789951E+14
Altitude
18835980.652203
Surface area
2.0484050789951E+14
Volume
1.2125692866385E+21
Height
10253009.20063