21695871 is an odd 8-digits composite number following 21695870
and preceding 21695872 . In scientific notation, it is written as 2.1695871 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 14463912 positive integers (up to 21695871) that are relatively prime to 21695871.
21695871 has 4 divisors, whose sum is 28927832
The reverse of 21695871 is 17859612
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred ninety-five thousand eight hundred seventy-one
Scientific notation
2.1695871 × 10^7
Engineering notation
2.1695871 × 10^6
Prime Factorization
3 × 7231957
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21695871
Product of the distinct prime numbers
The prime factorization of 21695871 is 3 × 7231957.
Since it has a total of 2 prime factors.
3 , 10 , 43 , 11 , 171 , 451 , 8548 , 796 , 22259 , 49674 , 12710 , 255759 , 993051 , 485992 , 63911957 , 9755744 , 649399026 , 533765646 , 9039572212 , 2575569044
n×2
43391742
n×3
65087613
n×4
86783484
n×5
108479355
n÷2
10847935.5
n÷3
7231957
n÷3
5423967.75
n÷5
4339174.2
n2
470710818448641
n3
1.0212481195366E+22
n4
2.2156867460459E+29
n5
4.8071253818621E+36
2 √n
4657.8826734902
3 √n
278.90675318115
4 √n
68.248682576957
5 √n
29.327525291574
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
-21695870
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 21695871 can be divided by 4 positive divisors.
The sum of these divisors (counting 21695871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010110000110101111111
3
Ternary
1111211021010210
4
Quaternary
1102300311333
5
Quinary
21023231441
6
Senary
2053003503
8
Octal
122606577
10
Decimal
21695871
12
Duodecimal
7323593
16
Hexadecimal
14b0d7f
20
Vigesimal
6fbjdb
36
Base36
cx0n3
md5
3dfe6a66a17f6f097a43483b91f18da9
sha1
2650d382b057b723dbca177ad53cd3a17950550f
sha256
abea1bc23f0e21cbb6ff909f372d0adcc51e65dda46710050c0554e3c53cdf33
sha512
9163c9365cd04e4c781a066fb39abb6721f9c8e8c5be6e9ad675b13f99f8e31ca52e3408d54fbf251f374af4d3c4085297baa5728231a3bcddf9e152e91c0a4d
ripemd-160
dad47cedca9ce0a357e4ed34740996557154b110
Diameter
43391742
Circumference
136319177.89366
Area
1.4787816492035E+15
Volume
4.2777941197715E+22
Surface area
5.915126596814E+15
Circumference
136319177.89366
Perimeter
86783484
Area
470710818448641
Diagonal
30682595.015697
Surface area
2824264910691846
Volume
1.0212481195366E+22
Space diagonal
37578350.88646
Perimeter
65087613
Area
2.0382376330634E+14
Altitude
18789175.44323
Surface area
2.0382376330634E+14
Volume
1.2035524509972E+21
Height
10227531.671899