20781329 is an odd 8-digits prime number following 20781328
and preceding 20781330 . In scientific notation, it is written as 2.0781329 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 20781328 positive integers (up to 20781329) that are relatively prime to 20781329.
20781329 has 2 divisors, whose sum is 20781330
The reverse of 20781329 is 92318702
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred eighty-one thousand three hundred twenty-nine
Scientific notation
2.0781329 × 10^7
Engineering notation
2.0781329 × 10^6
Prime Factorization
20781329
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20781329
Product of the distinct prime numbers
The prime factorization of 20781329 is 20781329.
Since it has a total of 1 prime factors.
10 , 10 , 53 , 78 , 753 , 981 , 2647 , 66 , 1589 , 96007 , 710641 , 353375 , 6078945 , 2272708 , 95693913 , 19689454 , 854862352 , 437438322 , 7594770126 , 299631677
n×2
41562658
n×3
62343987
n×4
83125316
n×5
103906645
n÷2
10390664.5
n÷3
6927109.6666667
n÷3
5195332.25
n÷5
4156265.8
n2
431863635006241
n3
8.9747002822006E+21
n4
1.865061992408E+29
n5
3.8758466869627E+36
2 √n
4558.6542970486
3 √n
274.93146060501
4 √n
67.51780725889
5 √n
29.076000227985
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20781330
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10390665
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4558.6544067301
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999037598
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20781329 can be divided by 2 positive divisors.
The sum of these divisors (counting 20781329) is 20781330, the average is 10390665.
Base
System
Value
2
Binary
1001111010001100100010001
3
Ternary
1110002210121212
4
Quaternary
1033101210101
5
Quinary
20310000304
6
Senary
2021225505
8
Octal
117214421
10
Decimal
20781329
12
Duodecimal
6b62295
16
Hexadecimal
13d1911
20
Vigesimal
69hd69
36
Base36
cdez5
md5
b45a6365769581f8f03c9ccf6a7ca53b
sha1
0d6da974d84190b4d31399c593759ab7295381e2
sha256
555bc199137856ba4614c87a9c267364bbfe4bc40fc51f634a4647c1d2fe4cab
sha512
d09e9c475ac56baf49738deac14ba5195b59d0932d7312ffa67e3df50a0fb987f08e7e02bcfd1daebd6ca93e88c52dc2e0d34d70dc2f9b2c5244946d11ece205
ripemd-160
8972d0060bc43425551ef9af6570ed3087d921be
Diameter
41562658
Circumference
130572941.03647
Area
1.3567396230882E+15
Volume
3.7593136632976E+22
Surface area
5.4269584923528E+15
Circumference
130572941.03647
Perimeter
83125316
Area
431863635006241
Diagonal
29389237.315937
Surface area
2591181810037446
Volume
8.9747002822006E+21
Space diagonal
35994317.676805
Perimeter
62343987
Area
1.8700243944305E+14
Altitude
17997158.838402
Surface area
1.8700243944305E+14
Volume
1.0576785714435E+21
Height
9796412.4386458