21691210 is an even 8-digits composite number following 21691209
and preceding 21691211 . In scientific notation, it is written as 2.1691210 × 10^7.
The sum of its digits is 22. It has a total of 5 prime factors and 32 positive divisors.
There are 8453760 positive integers (up to 21691210) that are relatively prime to 21691210.
21691210 has 32 divisors, whose sum is 40061952
The reverse of 21691210 is 01219612
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million six hundred ninety-one thousand two hundred ten
Scientific notation
2.1691210 × 10^7
Engineering notation
2.1691210 × 10^6
Prime Factorization
2 × 5 × 71 × 137 × 223
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21691210
Product of the distinct prime numbers
The prime factorization of 21691210 is 2 × 5 × 71 × 137 × 223.
Since it has a total of 5 prime factors.
5 , 5 , 9 , 7 , 903 , 475 , 5556 , 4389 , 42032 , 69934 , 345647 , 417953 , 9452863 , 7207864 , 48409123 , 42690713 , 888578692 , 984501766 , 9917179910 , 173651184
n×2
43382420
n×3
65073630
n×4
86764840
n×5
108456050
n÷2
10845605
n÷3
7230403.3333333
n÷3
5422802.5
n÷5
4338242
n2
470508591264100
n3
1.0205900659914E+22
n4
2.2137833445333E+29
n5
4.8019639420774E+36
2 √n
4657.382311986
3 √n
278.8867789123
4 √n
68.245016755702
5 √n
29.326265076268
1 , 2 , 5 , 10 , 71 , 137 , 142 , 223 , 274 , 355 , 446 , 685 , 710 , 1115 , 1370 , 2230 , 9727 , 15833 , 19454 , 30551 , 31666 , 48635 , 61102 , 79165 , 97270 , 152755 , 158330 , 305510 , 2169121 , 4338242 , 10845605 , 21691210
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21691209
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21691210 can be divided by 32 positive divisors.
The sum of these divisors (counting 21691210) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010010101111101101001010
3
Ternary
1111211000202011
4
Quaternary
1102233231022
5
Quinary
21023104320
6
Senary
2052530134
8
Octal
122575512
10
Decimal
21691210
12
Duodecimal
732094a
16
Hexadecimal
14afb4a
20
Vigesimal
6fb80a
36
Base36
cwx1m
md5
0c7f6adebcb52bb784f9f7ce33f6e443
sha1
7db0c485833bf7634e9940a3f91a5d1dc7039e5a
sha256
e95f228f69d031c3ab44762ee54c06d7243b8271ebd8db02562bec77cac32075
sha512
ff4c05defb3375f9ebe1ec1ad26f8cc603297e7ff2cfde16b492feb6ef12a618617b4e3529e913647136127f0fe98273a524d90530535eb76192aaaa3ef40e10
ripemd-160
a563f5546a6858ff117fc844fbd50637cd8e1c8c
Diameter
43382420
Circumference
136289891.96695
Area
1.4781463337662E+15
Volume
4.275037671527E+22
Surface area
5.9125853350647E+15
Circumference
136289891.96695
Perimeter
86764840
Area
470508591264100
Diagonal
30676003.366283
Surface area
2823051547584600
Volume
1.0205900659914E+22
Space diagonal
37570277.797646
Perimeter
65073630
Area
2.0373619636677E+14
Altitude
18785138.898823
Surface area
2.0373619636677E+14
Volume
1.2027769274569E+21
Height
10225334.455428