20157790 is an even 8-digits composite number following 20157789
and preceding 20157791 . In scientific notation, it is written as 2.0157790 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 8063112 positive integers (up to 20157790) that are relatively prime to 20157790.
20157790 has 8 divisors, whose sum is 36284040
The reverse of 20157790 is 09775102
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred fifty-seven thousand seven hundred ninety
Scientific notation
2.0157790 × 10^7
Engineering notation
2.0157790 × 10^6
Prime Factorization
2 × 5 × 2015779
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157790
Product of the distinct prime numbers
The prime factorization of 20157790 is 2 × 5 × 2015779.
Since it has a total of 3 prime factors.
5 , 1 , 77 , 47 , 30 , 462 , 7307 , 8949 , 32895 , 45962 , 395072 , 438653 , 228690 , 9496590 , 6898477 , 32426380 , 252869374 , 812499841 , 5619523105 , 4700500855
n×2
40315580
n×3
60473370
n×4
80631160
n×5
100788950
n÷2
10078895
n÷3
6719263.3333333
n÷3
5039447.5
n÷5
4031558
n2
406336497684100
n3
8.1908457896516E+21
n4
1.6510934935018E+29
n5
3.3282395912376E+36
2 √n
4489.7427543235
3 √n
272.15373914007
4 √n
67.005542713446
5 √n
28.899383838631
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
-20157789
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 20157790 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157790) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010101011110
3
Ternary
1101221010021211
4
Quaternary
1030321111132
5
Quinary
20130022130
6
Senary
2000015034
8
Octal
114712536
10
Decimal
20157790
12
Duodecimal
690147a
16
Hexadecimal
133955e
20
Vigesimal
65je9a
36
Base36
c01um
md5
dbc7fe01663f350fc26aeda2bbfd419e
sha1
cefda1c747d4b79ad8ae97e7dd39314f3461857f
sha256
6a64ed1b6b48f552b2c754bc83518ab5171dd1cc30f48e4d7afd4376a00ceaac
sha512
710c0aa3075d8ba49630d42f24e9ea583a23f3d6d89679b0e7e7a39ba8a1ea5940a961fc89910751112bb02fa9c1170b5fa85ce82b44f8e18344b4241144f476
ripemd-160
4d8424b504434bcac246c90364b0e91753debab7
Diameter
40315580
Circumference
126655129.95321
Area
1.2765437560098E+15
Volume
3.4309734612608E+22
Surface area
5.1061750240391E+15
Circumference
126655129.95321
Perimeter
80631160
Area
406336497684100
Diagonal
28507420.005469
Surface area
2438018986104600
Volume
8.1908457896516E+21
Space diagonal
34914316.448304
Perimeter
60473370
Area
1.7594886473961E+14
Altitude
17457158.224152
Surface area
1.7594886473961E+14
Volume
9.6530043358599E+20
Height
9502473.3351563