20459721 is an odd 8-digits composite number following 20459720
and preceding 20459722 . In scientific notation, it is written as 2.0459721 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12422400 positive integers (up to 20459721) that are relatively prime to 20459721.
20459721 has 16 divisors, whose sum is 29818368
The reverse of 20459721 is 12795402
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million four hundred fifty-nine thousand seven hundred twenty-one
Scientific notation
2.0459721 × 10^7
Engineering notation
2.0459721 × 10^6
Prime Factorization
3 × 17 × 31 × 12941
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20459721
Product of the distinct prime numbers
The prime factorization of 20459721 is 3 × 17 × 31 × 12941.
Since it has a total of 4 prime factors.
1 , 6 , 39 , 57 , 265 , 854 , 5141 , 9066 , 53174 , 49990 , 128379 , 133729 , 1065044 , 7047186 , 91894187 , 27603123 , 871768120 , 349872260 , 5833208347 , 5314052535
n×2
40919442
n×3
61379163
n×4
81838884
n×5
102298605
n÷2
10229860.5
n÷3
6819907
n÷3
5114930.25
n÷5
4091944.2
n2
418600183397841
n3
8.5644429628687E+21
n4
1.7522611354071E+29
n5
3.5850773949572E+36
2 √n
4523.2423105556
3 √n
273.50581799445
4 √n
67.25505416365
5 √n
28.985442940982
1 , 3 , 17 , 31 , 51 , 93 , 527 , 1581 , 12941 , 38823 , 219997 , 401171 , 659991 , 1203513 , 6819907 , 20459721
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20459720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20459721 can be divided by 16 positive divisors.
The sum of these divisors (counting 20459721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000011000011001001
3
Ternary
1102111110110110
4
Quaternary
1032003003021
5
Quinary
20214202341
6
Senary
2010304533
8
Octal
116030311
10
Decimal
20459721
12
Duodecimal
6a28149
16
Hexadecimal
13830c9
20
Vigesimal
67h961
36
Base36
c6itl
md5
dfe6b1415d581dce753696bc6c973859
sha1
52208885280c0e6f797692f391bcc9648bff92d5
sha256
a6ed10e4b2d3833b3b437d82e58bc671e5c356c59b39836e962521cb5fe37c81
sha512
a60bf451ff25a4a458f241480dae5d0dac5859712c42d951ffd80b01494cdbb91d1918ae72afa785c3af47dd1159bac6762dd6e11adba8882f95cf7af6abe138
ripemd-160
306fe0879082d9914dff2c96c04485e1adff15e1
Diameter
40919442
Circumference
128552218.37619
Area
1.315071260954E+15
Volume
3.5874654792316E+22
Surface area
5.260285043816E+15
Circumference
128552218.37619
Perimeter
81838884
Area
418600183397841
Diagonal
28934414.92057
Surface area
2511601100387046
Volume
8.5644429628687E+21
Space diagonal
35437276.280684
Perimeter
61379163
Area
1.8125919642568E+14
Altitude
17718638.140342
Surface area
1.8125919642568E+14
Volume
1.0093292826883E+21
Height
9644804.9735232