20597981 is an odd 8-digits composite number following 20597980
and preceding 20597982 . In scientific notation, it is written as 2.0597981 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 19818000 positive integers (up to 20597981) that are relatively prime to 20597981.
20597981 has 8 divisors, whose sum is 21385728
The reverse of 20597981 is 18979502
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million five hundred ninety-seven thousand nine hundred eighty-one
Scientific notation
2.0597981 × 10^7
Engineering notation
2.0597981 × 10^6
Prime Factorization
31 × 181 × 3671
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20597981
Product of the distinct prime numbers
The prime factorization of 20597981 is 31 × 181 × 3671.
Since it has a total of 3 prime factors.
3 , 8 , 23 , 61 , 884 , 744 , 7795 , 8124 , 20526 , 75965 , 719016 , 237287 , 6646849 , 5799529 , 31444671 , 25691495 , 894550358 , 331075273 , 9508318682 , 3526650403
n×2
41195962
n×3
61793943
n×4
82391924
n×5
102989905
n÷2
10298990.5
n÷3
6865993.6666667
n÷3
5149495.25
n÷5
4119596.2
n2
424276821276361
n3
8.7392459033909E+21
n4
1.8001082107237E+29
n5
3.7078594722431E+36
2 √n
4538.4998622893
3 √n
274.12052257327
4 √n
67.368389191737
5 √n
29.024512275707
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
-20597980
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 20597981 can be divided by 8 positive divisors.
The sum of these divisors (counting 20597981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110100100110011011101
3
Ternary
1102202111010012
4
Quaternary
1032210303131
5
Quinary
20233113411
6
Senary
2013253005
8
Octal
116446335
10
Decimal
20597981
12
Duodecimal
6a94165
16
Hexadecimal
13a4cdd
20
Vigesimal
68eej1
36
Base36
c9hi5
md5
53bf0c933c1f202760e213009d0f8b4c
sha1
f62a7953a76985f6612c5f4e3b003f71d4e6d7e9
sha256
15f0c18731bc1b13b701032469a7f57f7d0662c27663cc580a0cf6ef4cb569ba
sha512
9dc1b0d35fac18b2215b268701c4de9ff0d8d8f5fcc186a1fab0376bc46aab4f84a9b7c776222316aebf147120d1d9f629be309337b103525febdc986bf48510
ripemd-160
baaaa7458ed76c972e0fa740378cc074bfde2897
Diameter
41195962
Circumference
129420931.57676
Area
1.3329049448102E+15
Volume
3.6606867637343E+22
Surface area
5.331619779241E+15
Circumference
129420931.57676
Perimeter
82391924
Area
424276821276361
Diagonal
29129944.087703
Surface area
2545660927658166
Volume
8.7392459033909E+21
Space diagonal
35676749.625338
Perimeter
61793943
Area
1.8371725273112E+14
Altitude
17838374.812669
Surface area
1.8371725273112E+14
Volume
1.0299300067907E+21
Height
9709981.3625678