20781377 is an odd 8-digits composite number following 20781376
and preceding 20781378 . In scientific notation, it is written as 2.0781377 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 19900800 positive integers (up to 20781377) that are relatively prime to 20781377.
20781377 has 8 divisors, whose sum is 21676032
The reverse of 20781377 is 77318702
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred eighty-one thousand three hundred seventy-seven
Scientific notation
2.0781377 × 10^7
Engineering notation
2.0781377 × 10^6
Prime Factorization
31 × 97 × 6911
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20781377
Product of the distinct prime numbers
The prime factorization of 20781377 is 31 × 97 × 6911.
Since it has a total of 3 prime factors.
2 , 1 , 45 , 93 , 476 , 255 , 7369 , 8938 , 28061 , 13843 , 18554 , 257940 , 7762347 , 6993747 , 12384028 , 10599993 , 904962302 , 843959869 , 6807030442 , 7715385932
n×2
41562754
n×3
62344131
n×4
83125508
n×5
103906885
n÷2
10390688.5
n÷3
6927125.6666667
n÷3
5195344.25
n÷5
4156275.4
n2
431865630016129
n3
8.9747624707077E+21
n4
1.8650792238923E+29
n5
3.8758914486573E+36
2 √n
4558.6595617572
3 √n
274.9316722806
4 √n
67.517846246434
5 √n
29.076013659722
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
-20781376
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 20781377 can be divided by 8 positive divisors.
The sum of these divisors (counting 20781377) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111010001100101000001
3
Ternary
1110002210200122
4
Quaternary
1033101211001
5
Quinary
20310001002
6
Senary
2021230025
8
Octal
117214501
10
Decimal
20781377
12
Duodecimal
6b62315
16
Hexadecimal
13d1941
20
Vigesimal
69hd8h
36
Base36
cdf0h
md5
613c8784455808c9d84b5c6bcee8e48c
sha1
8169125ee032b629e2f8757b4de3622e8019125e
sha256
20fba04ff6d88ef8fec5b31d7414ec2ecfb5eea0d725466af663a786c1ea32a1
sha512
7f521cc764e96379dd58bb3aa571b0f9c2079340bcd10e82dfa43a6fd5f9ec978a4ad130a068984e19cde2b73aa47b10e58ce7bb0f7c2c65f61be2081a51daf3
ripemd-160
d354cccad49af96e51cedf6ec67516c1a60f2d06
Diameter
41562754
Circumference
130573242.62936
Area
1.3567458905966E+15
Volume
3.7593397127585E+22
Surface area
5.4269835623864E+15
Circumference
130573242.62936
Perimeter
83125508
Area
431865630016129
Diagonal
29389305.198188
Surface area
2591193780096774
Volume
8.9747624707077E+21
Space diagonal
35994400.815243
Perimeter
62344131
Area
1.8700330330767E+14
Altitude
17997200.407622
Surface area
1.8700330330767E+14
Volume
1.0576859004293E+21
Height
9796435.0660628