21031709 is an odd 8-digits composite number following 21031708
and preceding 21031710 . In scientific notation, it is written as 2.1031709 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 21021660 positive integers (up to 21031709) that are relatively prime to 21031709.
21031709 has 4 divisors, whose sum is 21041760
The reverse of 21031709 is 90713012
Previous prime number is 2971
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million thirty-one thousand seven hundred nine
Scientific notation
2.1031709 × 10^7
Engineering notation
2.1031709 × 10^6
Prime Factorization
2971 × 7079
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031709
Product of the distinct prime numbers
The prime factorization of 21031709 is 2971 × 7079.
Since it has a total of 2 prime factors.
7 , 6 , 37 , 49 , 275 , 506 , 4184 , 7442 , 5242 , 86074 , 379731 , 792370 , 6949325 , 2348121 , 97905359 , 92007773 , 993109299 , 773679110 , 1569115350 , 1487293351
n×2
42063418
n×3
63095127
n×4
84126836
n×5
105158545
n÷2
10515854.5
n÷3
7010569.6666667
n÷3
5257927.25
n÷5
4206341.8
n2
442332783460681
n3
9.3030143829051E+21
n4
1.9565829132407E+29
n5
4.1150282465651E+36
2 √n
4586.0341254727
3 √n
276.03120927625
4 √n
67.720263772911
5 √n
29.145728352847
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
-21031708
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 21031709 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031709) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101100011101
3
Ternary
1110120112002012
4
Quaternary
1100032230131
5
Quinary
20341003314
6
Senary
2030441005
8
Octal
120165435
10
Decimal
21031709
12
Duodecimal
7063165
16
Hexadecimal
140eb1d
20
Vigesimal
6b8j59
36
Base36
cis65
md5
6ca71bf65cac31d62b9ef6ec04bded9c
sha1
a774e1e9c84f72156bf067121f14d8f551a2c8db
sha256
a06ab612edb6530825bfdb3ebea5d124a69206ab1346ec519ff59b1f82a04c35
sha512
406bde31a1f8ee68d4d54cba5f0f37718663f216c6977d181d6c507310d7df9018a9e031f5034bb89d30f773b4a50de5d4abcc41337038982fb86ef0dbcc2cf8
ripemd-160
9e0c58e8d56b271490a28f61ba46a37312a95df6
Diameter
42063418
Circumference
132146124.97368
Area
1.389629422962E+15
Volume
3.89683755221E+22
Surface area
5.558517691848E+15
Circumference
132146124.97368
Perimeter
84126836
Area
442332783460681
Diagonal
29743328.107684
Surface area
2653996700764086
Volume
9.3030143829051E+21
Space diagonal
36427988.558004
Perimeter
63095127
Area
1.9153571370182E+14
Altitude
18213994.279002
Surface area
1.9153571370182E+14
Volume
1.0963707592714E+21
Height
9914442.7025614