21090188 is an even 8-digits composite number following 21090187
and preceding 21090189 . In scientific notation, it is written as 2.1090188 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 9038568 positive integers (up to 21090188) that are relatively prime to 21090188.
21090188 has 12 divisors, whose sum is 37661400
The reverse of 21090188 is 88109012
Previous prime number is 49
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million ninety thousand one hundred eighty-eight
Scientific notation
2.1090188 × 10^7
Engineering notation
2.1090188 × 10^6
Prime Factorization
2 × 2 × 49 × 107603
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10545094
Product of the distinct prime numbers
The prime factorization of 21090188 is 2 × 2 × 49 × 107603.
Since it has a total of 4 prime factors.
1 , 7 , 3 , 59 , 85 , 850 , 2410 , 4849 , 45020 , 92818 , 554346 , 115550 , 2832434 , 9808745 , 74278143 , 23993839 , 190986994 , 311821178 , 8065583324 , 4550726092
n×2
42180376
n×3
63270564
n×4
84360752
n×5
105450940
n÷2
10545094
n÷3
7030062.6666667
n÷3
5272547
n÷5
4218037.6
n2
444796029875344
n3
9.3808318917246E+21
n4
1.9784350819287E+29
n5
4.1725567823671E+36
2 √n
4592.4054699035
3 √n
276.28680890598
4 √n
67.767289084805
5 √n
29.161918388053
1 , 2 , 4 , 49 , 98 , 196 , 107603 , 215206 , 430412 , 5272547 , 10545094 , 21090188
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21090187
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21090188 can be divided by 12 positive divisors.
The sum of these divisors (counting 21090188) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000011100111110001100
3
Ternary
1110200111022002
4
Quaternary
1100130332030
5
Quinary
20344341223
6
Senary
2032011432
8
Octal
120347614
10
Decimal
21090188
12
Duodecimal
7090b78
16
Hexadecimal
141cf8c
20
Vigesimal
6bg598
36
Base36
ck1ak
md5
e93913dfd56ef7a0dfdc3da1067033a5
sha1
9f527240c7304d6a61782054174100721bb317b9
sha256
ef9414e08157ee4860761a9d875f37778daa4d085cef2ff43841e759e21c67fe
sha512
f02458748e8c5f3bc3c161a8c1bd3fdd5f81ed6893902077d387a99a1cd8a2bd6a5df021ad2205b4b7d1cc3db644be91d5bfbbe31b06bb94babc9924215b7783
ripemd-160
8c57ccf1c634ae3a5d5b01e54e7efa90b0dac333
Diameter
42180376
Circumference
132513559.36726
Area
1.3973679398023E+15
Volume
3.9294336740804E+22
Surface area
5.5894717592091E+15
Circumference
132513559.36726
Perimeter
84360752
Area
444796029875344
Diagonal
29826029.902598
Surface area
2668776179252064
Volume
9.3808318917246E+21
Space diagonal
36529277.157179
Perimeter
63270564
Area
1.9260233068726E+14
Altitude
18264638.57859
Surface area
1.9260233068726E+14
Volume
1.1055416406349E+21
Height
9942009.9675328