20077981 is an odd 8-digits composite number following 20077980
and preceding 20077982 . In scientific notation, it is written as 2.0077981 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 15645120 positive integers (up to 20077981) that are relatively prime to 20077981.
20077981 has 8 divisors, whose sum is 25032384
The reverse of 20077981 is 18977002
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million seventy-seven thousand nine hundred eighty-one
Scientific notation
2.0077981 × 10^7
Engineering notation
2.0077981 × 10^6
Prime Factorization
7 × 11 × 260753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20077981
Product of the distinct prime numbers
The prime factorization of 20077981 is 7 × 11 × 260753.
Since it has a total of 3 prime factors.
8 , 1 , 96 , 31 , 32 , 863 , 1429 , 2523 , 90693 , 3182 , 42061 , 499071 , 7386421 , 4150140 , 89401500 , 13030169 , 95219251 , 881835718 , 8303357236 , 7353878186
n×2
40155962
n×3
60233943
n×4
80311924
n×5
100389905
n÷2
10038990.5
n÷3
6692660.3333333
n÷3
5019495.25
n÷5
4015596.2
n2
403125321036361
n3
8.093942536387E+21
n4
1.6251002446067E+29
n5
3.2628731834308E+36
2 √n
4480.8460138684
3 √n
271.7940924706
4 √n
66.93912169926
5 √n
28.876463743847
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
-20077980
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 20077981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20077981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100101110110011101
3
Ternary
1101210001210221
4
Quaternary
1030211312131
5
Quinary
20114443411
6
Senary
1554201341
8
Octal
114456635
10
Decimal
20077981
12
Duodecimal
6883251
16
Hexadecimal
1325d9d
20
Vigesimal
659ej1
36
Base36
byc9p
md5
13433359f2a1ec9624ce01626e987b53
sha1
53b6cc0f71745d5123f0ad8836c2b608246b4142
sha256
cb75fe7ec6f22a4c34c5e8601ebf989e021c4ac4301c8c676b48cf122bc79410
sha512
560d079658db4cbb00292f69dd6650ef3b6769932d4a9a689cb4b9cc4b7fdf0cafe3ec95de9c99816faeb4d86ff4b6a4b690fe300b97573b14c323f9b8afa792
ripemd-160
0afc849b7b12804583067ae78d319471d4721297
Diameter
40155962
Circumference
126153675.21703
Area
1.2664555470439E+15
Volume
3.3903827214522E+22
Surface area
5.0658221881754E+15
Circumference
126153675.21703
Perimeter
80311924
Area
403125321036361
Diagonal
28394553.035269
Surface area
2418751926218166
Volume
8.093942536387E+21
Space diagonal
34776083.205403
Perimeter
60233943
Area
1.7455838446312E+14
Altitude
17388041.602701
Surface area
1.7455838446312E+14
Volume
9.5388027566891E+20
Height
9464851.0117564