21091007 is an odd 8-digits composite number following 21091006
and preceding 21091008 . In scientific notation, it is written as 2.1091007 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 17039808 positive integers (up to 21091007) that are relatively prime to 21091007.
21091007 has 16 divisors, whose sum is 25501440
The reverse of 21091007 is 70019012
Previous prime number is 347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million ninety-one thousand seven
Scientific notation
2.1091007 × 10^7
Engineering notation
2.1091007 × 10^6
Prime Factorization
7 × 19 × 347 × 457
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21091007
Product of the distinct prime numbers
The prime factorization of 21091007 is 7 × 19 × 347 × 457.
Since it has a total of 4 prime factors.
8 , 8 , 88 , 60 , 1 , 802 , 4388 , 2114 , 31253 , 67186 , 831739 , 571448 , 9997981 , 3204678 , 57131506 , 33002725 , 592814802 , 213505126 , 7093705418 , 2691812386
n×2
42182014
n×3
63273021
n×4
84364028
n×5
105455035
n÷2
10545503.5
n÷3
7030335.6666667
n÷3
5272751.75
n÷5
4218201.4
n2
444830576274049
n3
9.38192479801E+21
n4
1.978742415883E+29
n5
4.1733670144586E+36
2 √n
4592.4946379936
3 √n
276.29038522889
4 √n
67.767946980808
5 √n
29.162144874798
1 , 7 , 19 , 133 , 347 , 457 , 2429 , 3199 , 6593 , 8683 , 46151 , 60781 , 158579 , 1110053 , 3013001 , 21091007
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
-21091006
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 21091007 can be divided by 16 positive divisors.
The sum of these divisors (counting 21091007) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011101001010111111
3
Ternary
1110200112102102
4
Quaternary
1100131022333
5
Quinary
20344403012
6
Senary
2032015315
8
Octal
120351277
10
Decimal
21091007
12
Duodecimal
709153b
16
Hexadecimal
141d2bf
20
Vigesimal
6bg7a7
36
Base36
ck1xb
md5
8b849baf304dfefb541eee43a183dc71
sha1
03fb815f284a5f68aee43b3f75dc663c69b5498c
sha256
fabf8e9db6b76238c7f26542579b79d5477c8a7fa5a866816fb380830e1e8fab
sha512
1ac814b205037d086d9da3298597932ab1b89e52f1ad1ffd4061c01239b08caa84a08dc2c801d9580b41617dffc629f5788614f9dd0087e635058489fabbc006
ripemd-160
8ff28d585fc88c4d1c8904a34eca0ceeaeadf3ea
Diameter
42182014
Circumference
132518705.29602
Area
1.3974764705147E+15
Volume
3.9298914695947E+22
Surface area
5.5899058820587E+15
Circumference
132518705.29602
Perimeter
84364028
Area
444830576274049
Diagonal
29827188.143506
Surface area
2668983457644294
Volume
9.38192479801E+21
Space diagonal
36530695.706791
Perimeter
63273021
Area
1.926172897167E+14
Altitude
18265347.853395
Surface area
1.926172897167E+14
Volume
1.1056704408759E+21
Height
9942396.0478353