64778081 is an odd 8-digits composite number following 64778080
and preceding 64778082 . In scientific notation, it is written as 6.4778081 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 63166320 positive integers (up to 64778081) that are relatively prime to 64778081.
64778081 has 8 divisors, whose sum is 66394944
The reverse of 64778081 is 18087746
Previous prime number is 997
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-four million seven hundred seventy-eight thousand eighty-one
Scientific notation
6.4778081 × 10^7
Engineering notation
6.4778081 × 10^6
Prime Factorization
43 × 997 × 1511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64778081
Product of the distinct prime numbers
The prime factorization of 64778081 is 43 × 997 × 1511.
Since it has a total of 3 prime factors.
8 , 10 , 100 , 77 , 244 , 578 , 3669 , 5922 , 95782 , 23760 , 531185 , 421513 , 8160114 , 6669600 , 6303794 , 65661429 , 312599624 , 796668783 , 2229357242 , 3849514839
n×2
129556162
n×3
194334243
n×4
259112324
n×5
323890405
n÷2
32389040.5
n÷3
21592693.666667
n÷3
16194520.25
n÷5
12955616.2
n2
4196199778042561
n3
2.7182176911422E+23
n4
1.7608092577244E+31
n5
1.1406184472242E+39
2 √n
8048.4831490163
3 √n
401.6144769765
4 √n
89.713338746344
5 √n
36.499390783481
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
-64778080
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 64778081 can be divided by 8 positive divisors.
The sum of these divisors (counting 64778081) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110111000110111101100001
3
Ternary
11111220001211012
4
Quaternary
3313012331201
5
Quinary
113040344311
6
Senary
10232230305
8
Octal
367067541
10
Decimal
64778081
12
Duodecimal
1983b395
16
Hexadecimal
3dc6f61
20
Vigesimal
104h541
36
Base36
12kf35
md5
36612c6b407c4bcd14be142a25f15ccd
sha1
ecebb9976b47874aca145a594b4fbf14bb601d3a
sha256
87ea4a9450dfdcc13f1e179f790396e9eeebbbccb785b50ecda85ec98287e88a
sha512
38ec8ef06db1cf0ed6ffacf0f6bb56ca8a9ae20dbe1d274cc3c8113623fa5d26151a3c3ab7935cf9c7cab533583029bbb84b1d92a106900eb1cc108d8c47d36c
ripemd-160
0227bca6b15b801fbd68ad3daf1e907f6d9a126b
Diameter
129556162
Circumference
407012686.76649
Area
1.3182750395694E+16
Volume
1.1386043639134E+24
Surface area
5.2731001582775E+16
Circumference
407012686.76649
Perimeter
259112324
Area
4196199778042561
Diagonal
91610040.694703
Surface area
25177198668255366
Volume
2.7182176911422E+23
Space diagonal
112198927.50881
Perimeter
194334243
Area
1.8170078035697E+15
Altitude
56099463.754406
Surface area
1.8170078035697E+15
Volume
3.2034502702465E+22
Height
30536680.231568