20129581 is an odd 8-digits composite number following 20129580
and preceding 20129582 . In scientific notation, it is written as 2.0129581 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18945472 positive integers (up to 20129581) that are relatively prime to 20129581.
20129581 has 4 divisors, whose sum is 21313692
The reverse of 20129581 is 18592102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-nine thousand five hundred eighty-one
Scientific notation
2.0129581 × 10^7
Engineering notation
2.0129581 × 10^6
Prime Factorization
17 × 1184093
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20129581
Product of the distinct prime numbers
The prime factorization of 20129581 is 17 × 1184093.
Since it has a total of 2 prime factors.
4 , 10 , 78 , 10 , 496 , 950 , 5829 , 1040 , 78173 , 28886 , 963210 , 592750 , 6591626 , 2181896 , 72543724 , 86822064 , 101565880 , 920511527 , 3630685564 , 419867235
n×2
40259162
n×3
60388743
n×4
80518324
n×5
100647905
n÷2
10064790.5
n÷3
6709860.3333333
n÷3
5032395.25
n÷5
4025916.2
n2
405200031235561
n3
8.1565068499588E+21
n4
1.641870653133E+29
n5
3.3050168303764E+36
2 √n
4486.6001604779
3 √n
272.02672837832
4 √n
66.982088355603
5 √n
28.891290893577
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
-20129580
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 20129581 can be divided by 4 positive divisors.
The sum of these divisors (counting 20129581) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010011100101101
3
Ternary
1101212200121001
4
Quaternary
1030302130231
5
Quinary
20123121311
6
Senary
1555240301
8
Octal
114623455
10
Decimal
20129581
12
Duodecimal
68a9091
16
Hexadecimal
133272d
20
Vigesimal
65g3j1
36
Base36
bzg31
md5
6ad305a3de29ca699f66d29f8ba695b2
sha1
6c666dc7f6edc64e0651b8fee8131331718cc59c
sha256
acc3c9a302de3b31244fb7d04a64214a1cbb7be8dc501daeb39cff8fc8394609
sha512
84dacdd78e46c852dfd9e20439f8757ee79a10f74a5c662e1285ed93076ccf69726cf5d7d047dc09cf5d43769fb6bc126e7fd6624245046e5d6565a9d8d78985
ripemd-160
2ad985b528e45247d2efd397593cea51d13a0a22
Diameter
40259162
Circumference
126477887.57888
Area
1.272973441364E+15
Volume
3.416589599838E+22
Surface area
5.091893765456E+15
Circumference
126477887.57888
Perimeter
80518324
Area
405200031235561
Diagonal
28467526.455088
Surface area
2431200187413366
Volume
8.1565068499588E+21
Space diagonal
34865457.027073
Perimeter
60388743
Area
1.7545676033212E+14
Altitude
17432728.513537
Surface area
1.7545676033212E+14
Volume
9.6125355073339E+20
Height
9489175.4850293