20157789 is an odd 8-digits composite number following 20157788
and preceding 20157790 . In scientific notation, it is written as 2.0157789 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13363920 positive integers (up to 20157789) that are relatively prime to 20157789.
20157789 has 8 divisors, whose sum is 27026272
The reverse of 20157789 is 98775102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million one hundred fifty-seven thousand seven hundred eighty-nine
Scientific notation
2.0157789 × 10^7
Engineering notation
2.0157789 × 10^6
Prime Factorization
3 × 181 × 37123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157789
Product of the distinct prime numbers
The prime factorization of 20157789 is 3 × 181 × 37123.
Since it has a total of 3 prime factors.
10 , 9 , 29 , 10 , 225 , 416 , 1802 , 1192 , 17845 , 64311 , 555805 , 380741 , 5288620 , 5784096 , 31494253 , 39668253 , 148922038 , 797042734 , 9398626494 , 83220749
n×2
40315578
n×3
60473367
n×4
80631156
n×5
100788945
n÷2
10078894.5
n÷3
6719263
n÷3
5039447.25
n÷5
4031557.8
n2
406336457368521
n3
8.1908445706421E+21
n4
1.651093165868E+29
n5
3.3282387656909E+36
2 √n
4489.7426429585
3 √n
272.15373463968
4 √n
67.005541882433
5 √n
28.899383551899
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
-20157788
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 20157789 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157789) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010101011101
3
Ternary
1101221010021210
4
Quaternary
1030321111131
5
Quinary
20130022124
6
Senary
2000015033
8
Octal
114712535
10
Decimal
20157789
12
Duodecimal
6901479
16
Hexadecimal
133955d
20
Vigesimal
65je99
36
Base36
c01ul
md5
4e3d4f99e031e4d2a57efa983c7ec66e
sha1
d138e785c36ce1ab4eb89d246dc750c8589326f3
sha256
284bb93d7285cef052a5cd9627fcd17c707c03a8eaad29c31664294d3b5e5f54
sha512
8728006a89a343f0ba017713e90593b46eccd6f884f0613a53d7f96ccf94012be2f99cfc7b3b6e736bde633911fa8de9913867aa17d311aefbc92d26553b22eb
ripemd-160
bdc627ed3c5f5b9845d872dd244f36f0e522864f
Diameter
40315578
Circumference
126655123.67003
Area
1.2765436293546E+15
Volume
3.4309729506434E+22
Surface area
5.1061745174186E+15
Circumference
126655123.67003
Perimeter
80631156
Area
406336457368521
Diagonal
28507418.591255
Surface area
2438018744211126
Volume
8.1908445706421E+21
Space diagonal
34914314.716253
Perimeter
60473367
Area
1.7594884728246E+14
Altitude
17457157.358127
Surface area
1.7594884728246E+14
Volume
9.6530028992435E+20
Height
9502472.8637517