21105880 is an even 8-digits composite number following 21105879
and preceding 21105881 . In scientific notation, it is written as 2.1105880 × 10^7.
The sum of its digits is 25. It has a total of 6 prime factors and 32 positive divisors.
There are 8417536 positive integers (up to 21105880) that are relatively prime to 21105880.
21105880 has 32 divisors, whose sum is 47628000
The reverse of 21105880 is 08850112
Previous prime number is 503
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred five thousand eight hundred eighty
Scientific notation
2.1105880 × 10^7
Engineering notation
2.1105880 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 503 × 1049
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5276470
Product of the distinct prime numbers
The prime factorization of 21105880 is 2 × 2 × 2 × 5 × 503 × 1049.
Since it has a total of 6 prime factors.
9 , 1 , 3 , 86 , 924 , 845 , 5812 , 9592 , 41177 , 85554 , 430209 , 128482 , 8674515 , 4145620 , 83694806 , 44899915 , 933547367 , 966541474 , 7435488888 , 6003434778
n×2
42211760
n×3
63317640
n×4
84423520
n×5
105529400
n÷2
10552940
n÷3
7035293.3333333
n÷3
5276470
n÷5
4221176
n2
445458170574400
n3
9.4017866931628E+21
n4
1.9843298173149E+29
n5
4.188102700467E+36
2 √n
4594.1136250641
3 √n
276.35531497756
4 √n
67.779891008057
5 √n
29.166256639489
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 503 , 1006 , 1049 , 2012 , 2098 , 2515 , 4024 , 4196 , 5030 , 5245 , 8392 , 10060 , 10490 , 20120 , 20980 , 41960 , 527647 , 1055294 , 2110588 , 2638235 , 4221176 , 5276470 , 10552940 , 21105880
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
-21105879
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 21105880 can be divided by 32 positive divisors.
The sum of these divisors (counting 21105880) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000100000110011011000
3
Ternary
1110201021211021
4
Quaternary
1100200303120
5
Quinary
20400342010
6
Senary
2032212224
8
Octal
120406330
10
Decimal
21105880
12
Duodecimal
709a074
16
Hexadecimal
1420cd8
20
Vigesimal
6bi4e0
36
Base36
ckdeg
md5
6289f8d423ecbd3ed01f3c76b4b8bd7c
sha1
70eaba2ce7e102d40683951eacb7d787bc7c2083
sha256
739dfaee2b2c8ad0004f236a69fe9fdb2d5a949e07ab3670e9a0a01105d34df1
sha512
62f8e9ae06fbc1b38a97dfa77f4259459a7ebf2f0f96952b331048e3216eec795018b8ab6f57aa4b82b9ecd86a8981e4f120bb91b92b0f9ad32ee01aba8b1ea3
ripemd-160
7fc026efafd99bcec006270bec822e31353ee8da
Diameter
42211760
Circumference
132612155.1111
Area
1.3994481161581E+15
Volume
3.9382112007811E+22
Surface area
5.5977924646323E+15
Circumference
132612155.1111
Perimeter
84423520
Area
445458170574400
Diagonal
29848221.741819
Surface area
2672749023446400
Volume
9.4017866931628E+21
Space diagonal
36556456.498452
Perimeter
63317640
Area
1.9288904602039E+14
Altitude
18278228.249226
Surface area
1.9288904602039E+14
Volume
1.1080111876675E+21
Height
9949407.247273