21291206 is an even 8-digits composite number following 21291205
and preceding 21291207 . In scientific notation, it is written as 2.1291206 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 10283040 positive integers (up to 21291206) that are relatively prime to 21291206.
21291206 has 16 divisors, whose sum is 33037200
The reverse of 21291206 is 60219212
Previous prime number is 149
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million two hundred ninety-one thousand two hundred six
Scientific notation
2.1291206 × 10^7
Engineering notation
2.1291206 × 10^6
Prime Factorization
2 × 37 × 149 × 1931
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21291206
Product of the distinct prime numbers
The prime factorization of 21291206 is 2 × 37 × 149 × 1931.
Since it has a total of 4 prime factors.
3 , 8 , 58 , 39 , 646 , 200 , 706 , 1174 , 72555 , 58498 , 357430 , 731631 , 8076881 , 7095686 , 68379109 , 92209758 , 639656934 , 705111681 , 3940161809 , 9184475902
n×2
42582412
n×3
63873618
n×4
85164824
n×5
106456030
n÷2
10645603
n÷3
7097068.6666667
n÷3
5322801.5
n÷5
4258241.2
n2
453315452934436
n3
9.6516326914104E+21
n4
2.0549489986915E+29
n5
4.3752342450635E+36
2 √n
4614.2394822982
3 √n
277.16183030607
4 √n
67.928193574526
5 √n
29.21729815132
1 , 2 , 37 , 74 , 149 , 298 , 1931 , 3862 , 5513 , 11026 , 71447 , 142894 , 287719 , 575438 , 10645603 , 21291206
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
-21291205
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 21291206 can be divided by 16 positive divisors.
The sum of these divisors (counting 21291206) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001001110000011000110
3
Ternary
1111001201001012
4
Quaternary
1101032003012
5
Quinary
20422304311
6
Senary
2040202222
8
Octal
121160306
10
Decimal
21291206
12
Duodecimal
7169372
16
Hexadecimal
144e0c6
20
Vigesimal
6d1806
36
Base36
cocee
md5
c97a3c3ecefa61d7223576acb802eb21
sha1
d2b8d6e5954cf6e64dda1c1b91f15d8341d99476
sha256
b8f130bf605c12842742e2052c63a3f8e48e782e34a7eb48564073d1448a0c70
sha512
5fc5102ea89c360f92791e122e03a7ff29ede9efff0cedaf64fd6b23a44827f6b743b73ccb32b0dc5dbd4a59abc551b5dd8e15a2ae20703c29ebd1146b29e4e0
ripemd-160
e9ba83d40b4b916c6c820caecc8154921257adb3
Diameter
42582412
Circumference
133776592.71133
Area
1.4241324966976E+15
Volume
4.0428664477976E+22
Surface area
5.6965299867902E+15
Circumference
133776592.71133
Perimeter
85164824
Area
453315452934436
Diagonal
30110312.284479
Surface area
2719892717606616
Volume
9.6516326914104E+21
Space diagonal
36877450.546415
Perimeter
63873618
Area
1.9629134908464E+14
Altitude
18438725.273208
Surface area
1.9629134908464E+14
Volume
1.1374558209363E+21
Height
10036770.761493