21031497 is an odd 8-digits composite number following 21031496
and preceding 21031498 . In scientific notation, it is written as 2.1031497 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 13967640 positive integers (up to 21031497) that are relatively prime to 21031497.
21031497 has 8 divisors, whose sum is 23457280
The reverse of 21031497 is 79413012
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million thirty-one thousand four hundred ninety-seven
Scientific notation
2.1031497 × 10^7
Engineering notation
2.1031497 × 10^6
Prime Factorization
9 × 271 × 8623
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031497
Product of the distinct prime numbers
The prime factorization of 21031497 is 9 × 271 × 8623.
Since it has a total of 3 prime factors.
9 , 1 , 54 , 94 , 820 , 49 , 8053 , 3855 , 87803 , 202 , 482416 , 307533 , 3436787 , 1952547 , 3622664 , 27593173 , 89050260 , 221769728 , 7821389611 , 2032748863
n×2
42062994
n×3
63094491
n×4
84125988
n×5
105157485
n÷2
10515748.5
n÷3
7010499
n÷3
5257874.25
n÷5
4206299.4
n2
442323866061009
n3
9.3027330620905E+21
n4
1.9565040248716E+29
n5
4.1148208529574E+36
2 √n
4586.0110117617
3 √n
276.03028180663
4 √n
67.720093116901
5 √n
29.145669594718
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
-21031496
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 21031497 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031497) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101001001001
3
Ternary
1110120111210100
4
Quaternary
1100032221021
5
Quinary
20341001442
6
Senary
2030440013
8
Octal
120165111
10
Decimal
21031497
12
Duodecimal
7063009
16
Hexadecimal
140ea49
20
Vigesimal
6b8ieh
36
Base36
cis09
md5
9bb1a8d7c6f93778e6f6f652f91beb31
sha1
2fa336953db561e5a1ec59eb498b29068e05f90b
sha256
31b91534b0e90f171c963e3272e5b4034a265dd0f24065c673a493111201a079
sha512
81065bf06a507356c543df2283d215ec992dcca3c39251470c2f7e2fa6ebcf815d1012ae90e1e7ff265b972e6b515c17bd51cae1219293f2aea617f7869f9ed5
ripemd-160
82f02ad989744a51ed6451e09087b82a75583137
Diameter
42062994
Circumference
132144792.93839
Area
1.3896014081247E+15
Volume
3.8967197128227E+22
Surface area
5.5584056324988E+15
Circumference
132144792.93839
Perimeter
84125988
Area
442323866061009
Diagonal
29743028.294409
Surface area
2653943196366054
Volume
9.3027330620905E+21
Space diagonal
36427621.363232
Perimeter
63094491
Area
1.9153185235449E+14
Altitude
18213810.681616
Surface area
1.9153185235449E+14
Volume
1.0963376052954E+21
Height
9914342.764803