21031270 is an even 8-digits composite number following 21031269
and preceding 21031271 . In scientific notation, it is written as 2.1031270 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 7765344 positive integers (up to 21031270) that are relatively prime to 21031270.
21031270 has 16 divisors, whose sum is 40768560
The reverse of 21031270 is 07213012
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million thirty-one thousand two hundred seventy
Scientific notation
2.1031270 × 10^7
Engineering notation
2.1031270 × 10^6
Prime Factorization
2 × 5 × 13 × 161779
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031270
Product of the distinct prime numbers
The prime factorization of 21031270 is 2 × 5 × 13 × 161779.
Since it has a total of 4 prime factors.
10 , 3 , 94 , 55 , 419 , 420 , 6759 , 2837 , 78123 , 26027 , 87100 , 310274 , 8903155 , 6838693 , 88864169 , 32484622 , 280253179 , 242195119 , 9365328129 , 738040124
n×2
42062540
n×3
63093810
n×4
84125080
n×5
105156350
n÷2
10515635
n÷3
7010423.3333333
n÷3
5257817.5
n÷5
4206254
n2
442314317812900
n3
9.3024318427889E+21
n4
1.9564195574229E+29
n5
4.1145987945442E+36
2 √n
4585.9862625176
3 √n
276.02928870726
4 √n
67.719910384743
5 √n
29.14560667865
1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 , 161779 , 323558 , 808895 , 1617790 , 2103127 , 4206254 , 10515635 , 21031270
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
-21031269
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 21031270 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031270) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110100101100110
3
Ternary
1110120111110221
4
Quaternary
1100032211212
5
Quinary
20341000040
6
Senary
2030434554
8
Octal
120164546
10
Decimal
21031270
12
Duodecimal
7062a5a
16
Hexadecimal
140e966
20
Vigesimal
6b8i3a
36
Base36
cirty
md5
bcffe0bdd624b62fdee5d780387b0a42
sha1
549004813fe87428b833fd98f84ed825f7f266f9
sha256
c9caedaf50b472b6091159e9bc63fdc934628b757b79217d7df31c1ab029ea4f
sha512
c7527754f6568f74582a1e7403d7c6c757e7b5e45362df07db3139af898cbb0212d502c7a25f549bec7a34b0829a08a6007433daafe13810fd7ac1199db9bf10
ripemd-160
b5ba21ece54ed1ad6d73bdd5a2d80063203b7152
Diameter
42062540
Circumference
132143366.65533
Area
1.3895714114186E+15
Volume
3.8965935383767E+22
Surface area
5.5582856456744E+15
Circumference
132143366.65533
Perimeter
84125080
Area
442314317812900
Diagonal
29742707.26793
Surface area
2653885906877400
Volume
9.3024318427889E+21
Space diagonal
36427228.187699
Perimeter
63093810
Area
1.9152771784178E+14
Altitude
18213614.09385
Surface area
1.9152771784178E+14
Volume
1.0963021062603E+21
Height
9914235.7559768