21059891 is an odd 8-digits composite number following 21059890
and preceding 21059892 . In scientific notation, it is written as 2.1059891 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20952792 positive integers (up to 21059891) that are relatively prime to 21059891.
21059891 has 4 divisors, whose sum is 21166992
The reverse of 21059891 is 19895012
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million fifty-nine thousand eight hundred ninety-one
Scientific notation
2.1059891 × 10^7
Engineering notation
2.1059891 × 10^6
Prime Factorization
197 × 106903
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21059891
Product of the distinct prime numbers
The prime factorization of 21059891 is 197 × 106903.
Since it has a total of 2 prime factors.
6 , 4 , 8 , 67 , 812 , 41 , 9526 , 7425 , 81186 , 62373 , 949826 , 463910 , 240018 , 4990388 , 61419130 , 21157437 , 702762952 , 752923016 , 7180688573 , 6248707481
n×2
42119782
n×3
63179673
n×4
84239564
n×5
105299455
n÷2
10529945.5
n÷3
7019963.6666667
n÷3
5264972.75
n÷5
4211978.2
n2
443519008931881
n3
9.3404619845334E+21
n4
1.9670911128392E+29
n5
4.1426724423462E+36
2 √n
4589.1056862966
3 √n
276.15444604403
4 √n
67.742938276226
5 √n
29.153535089004
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
-21059890
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 21059891 can be divided by 4 positive divisors.
The sum of these divisors (counting 21059891) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010101100100110011
3
Ternary
1110121221201222
4
Quaternary
1100111210303
5
Quinary
20342404031
6
Senary
2031215255
8
Octal
120254463
10
Decimal
21059891
12
Duodecimal
707752b
16
Hexadecimal
1415933
20
Vigesimal
6bc9eb
36
Base36
cjdwz
md5
494e3e6e99a992e665f4dbf3cb4376e1
sha1
a295cfe05ba6cc5ed53b043633e8798225061a1f
sha256
89e59bf7e4c1286d9b34da3c31f97ba2705479b235082cfae6b6e2ddc52b0abb
sha512
d700d44831f3a2af171896522a1f7c76b66455c1c2d61fd581a70f246e04a87a004419fc3ac902b6f4f63b3cc6a457cd7f5e091b188e72593281068139f908c9
ripemd-160
6d9f3f3fc4c6a6ec6cc83928f8ceed9e30b31a10
Diameter
42119782
Circumference
132323197.702
Area
1.3933560601878E+15
Volume
3.9125235668993E+22
Surface area
5.5734242407513E+15
Circumference
132323197.702
Perimeter
84239564
Area
443519008931881
Diagonal
29783183.474299
Surface area
2661114053591286
Volume
9.3404619845334E+21
Space diagonal
36476801.213863
Perimeter
63179673
Area
1.9204936439815E+14
Altitude
18238400.606931
Surface area
1.9204936439815E+14
Volume
1.1007840014465E+21
Height
9927727.8247664