21031430 is an even 8-digits composite number following 21031429
and preceding 21031431 . In scientific notation, it is written as 2.1031430 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 6896736 positive integers (up to 21031430) that are relatively prime to 21031430.
21031430 has 8 divisors, whose sum is 31588752
The reverse of 21031430 is 03413012
Previous prime number is 805
Is Prime? no
Number parity even
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty-one million thirty-one thousand four hundred thirty
Scientific notation
2.1031430 × 10^7
Engineering notation
2.1031430 × 10^6
Prime Factorization
2 × 805 × 13063
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031430
Product of the distinct prime numbers
The prime factorization of 21031430 is 2 × 805 × 13063.
Since it has a total of 3 prime factors.
8 , 1 , 85 , 10 , 566 , 312 , 9216 , 2733 , 12568 , 83509 , 50066 , 967733 , 7382525 , 6860376 , 51621222 , 76997002 , 501135681 , 58566240 , 5637524678 , 7839438296
n×2
42062860
n×3
63094290
n×4
84125720
n×5
105157150
n÷2
10515715
n÷3
7010476.6666667
n÷3
5257857.5
n÷5
4206286
n2
442321047844900
n3
9.3026441552767E+21
n4
1.9564790936661E+29
n5
4.1147553104902E+36
2 √n
4586.0037069326
3 √n
276.02998868994
4 √n
67.720039182894
5 √n
29.145651024834
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031429
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031430 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031430) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101000000110
3
Ternary
1110120111200212
4
Quaternary
1100032220012
5
Quinary
20341001210
6
Senary
2030435422
8
Octal
120165006
10
Decimal
21031430
12
Duodecimal
7062b72
16
Hexadecimal
140ea06
20
Vigesimal
6b8iba
36
Base36
cirye
md5
c08b8a99ef1d49dec9474d049a654d24
sha1
081cb5f2d221e9dd7ef5cd657293518fc2898051
sha256
7d8034fb3c8e71eb79c5e566fd2d68e71825fe9df7e1be5756469486adcc0670
sha512
4008e3b9053d8e97db57723fe64b906ae84be1a2a742f21132a5a840d967d669284ba2571420016dc27dc4efc57b746c1fe3dea4f8096287eafd30e8259320e4
ripemd-160
0d9ee137eed849458a0a5725f84e35ac1627fc9c
Diameter
42062860
Circumference
132144371.96498
Area
1.3895925544377E+15
Volume
3.8966824716236E+22
Surface area
5.5583702177507E+15
Circumference
132144371.96498
Perimeter
84125720
Area
442321047844900
Diagonal
29742933.5421
Surface area
2653926287069400
Volume
9.3026441552767E+21
Space diagonal
36427505.315828
Perimeter
63094290
Area
1.9153063203112E+14
Altitude
18213752.657914
Surface area
1.9153063203112E+14
Volume
1.0963271275269E+21
Height
9914311.1807001