21031585 is an odd 8-digits composite number following 21031584
and preceding 21031586 . In scientific notation, it is written as 2.1031585 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 16825264 positive integers (up to 21031585) that are relatively prime to 21031585.
21031585 has 4 divisors, whose sum is 25237908
The reverse of 21031585 is 58513012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million thirty-one thousand five hundred eighty-five
Scientific notation
2.1031585 × 10^7
Engineering notation
2.1031585 × 10^6
Prime Factorization
5 × 4206317
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031585
Product of the distinct prime numbers
The prime factorization of 21031585 is 5 × 4206317.
Since it has a total of 2 prime factors.
3 , 10 , 12 , 62 , 393 , 431 , 991 , 9650 , 42309 , 32996 , 907812 , 576372 , 4742403 , 3520062 , 28821375 , 36414989 , 819453944 , 425389694 , 5184132733 , 3365552773
n×2
42063170
n×3
63094755
n×4
84126340
n×5
105157925
n÷2
10515792.5
n÷3
7010528.3333333
n÷3
5257896.25
n÷5
4206317
n2
442327567612225
n3
9.3028498360798E+21
n4
1.9565367706975E+29
n5
4.1149069398549E+36
2 √n
4586.0206061465
3 √n
276.03066679478
4 √n
67.720163955402
5 √n
29.145693984943
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
-21031584
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 21031585 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031585) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101010100001
3
Ternary
1110120111220121
4
Quaternary
1100032222201
5
Quinary
20341002320
6
Senary
2030440241
8
Octal
120165241
10
Decimal
21031585
12
Duodecimal
7063081
16
Hexadecimal
140eaa1
20
Vigesimal
6b8ij5
36
Base36
cis2p
md5
988dfa699df5cd659a03c764628744eb
sha1
b0379810797baa592ca6b63ce6e639247dab3879
sha256
2bac8eee9c2a14591ea63c49fd8328f3d0ff0698acae2837ecd69a0826351dac
sha512
1f6d365fbdc415ebc9e80790fc1eb1e6efa40ed3d0734d6923b2f0f57bc1a8edd8186a1cb2889e90680ed60f554c95d114604e1f368484f0eec322026607bc68
ripemd-160
2a8df52e60917b04b90a78d15ca55ede704571f6
Diameter
42063170
Circumference
132145345.8587
Area
1.3896130368908E+15
Volume
3.896768626997E+22
Surface area
5.5584521475632E+15
Circumference
132145345.8587
Perimeter
84126340
Area
442327567612225
Diagonal
29743152.745203
Surface area
2653965405673350
Volume
9.3028498360798E+21
Space diagonal
36427773.783703
Perimeter
63094755
Area
1.9153345517318E+14
Altitude
18213886.891852
Surface area
1.9153345517318E+14
Volume
1.096351367242E+21
Height
9914384.2484009