21031801 is an odd 8-digits composite number following 21031800
and preceding 21031802 . In scientific notation, it is written as 2.1031801 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 18027252 positive integers (up to 21031801) that are relatively prime to 21031801.
21031801 has 4 divisors, whose sum is 24036352
The reverse of 21031801 is 10813012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million thirty-one thousand eight hundred one
Scientific notation
2.1031801 × 10^7
Engineering notation
2.1031801 × 10^6
Prime Factorization
7 × 3004543
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031801
Product of the distinct prime numbers
The prime factorization of 21031801 is 7 × 3004543.
Since it has a total of 2 prime factors.
7 , 8 , 40 , 8 , 559 , 785 , 9467 , 6591 , 40961 , 80490 , 804495 , 385279 , 7756059 , 6350651 , 68904027 , 17729299 , 375329646 , 813769875 , 666192255 , 8420243469
n×2
42063602
n×3
63095403
n×4
84127204
n×5
105159005
n÷2
10515900.5
n÷3
7010600.3333333
n÷3
5257950.25
n÷5
4206360.2
n2
442336653303601
n3
9.3031364672873E+21
n4
1.9566171485583E+29
n5
4.1151182501666E+36
2 √n
4586.0441559148
3 √n
276.03161176112
4 √n
67.720337830778
5 √n
29.14575385151
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
-21031800
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 21031801 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031801) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101101111001
3
Ternary
1110120112012121
4
Quaternary
1100032231321
5
Quinary
20341004201
6
Senary
2030441241
8
Octal
120165571
10
Decimal
21031801
12
Duodecimal
7063221
16
Hexadecimal
140eb79
20
Vigesimal
6b8ja1
36
Base36
cis8p
md5
4f28ec2521b925328db7ec02bf968b5d
sha1
a619ad481aa33eeb6cd8cfdc458c23df3c09e7a3
sha256
62d295072df4ad9d10367f37a113eb0ab256ccba58b89c1275463123fc397dbf
sha512
0562d1932140c53a434e342fc735f8ed7fb07e976ce520c4959979d6b0c5524bdbf9fb4f78442842dfd7c226eb886218e4cc0c3952f03593cc736fed90c83bce
ripemd-160
acdc2f9e11dd8fa551686717957a3f2943f825be
Diameter
42063602
Circumference
132146703.02672
Area
1.3896415804321E+15
Volume
3.8968886907964E+22
Surface area
5.5585663217284E+15
Circumference
132146703.02672
Perimeter
84127204
Area
442336653303601
Diagonal
29743458.215332
Surface area
2654019919821606
Volume
9.3031364672873E+21
Space diagonal
36428147.906678
Perimeter
63095403
Area
1.9153738939295E+14
Altitude
18214073.953339
Surface area
1.9153738939295E+14
Volume
1.0963851470538E+21
Height
9914486.0717773