77897781 is an odd 8-digits composite number following 77897780
and preceding 77897782 . In scientific notation, it is written as 7.7897781 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 47935152 positive integers (up to 77897781) that are relatively prime to 77897781.
77897781 has 16 divisors, whose sum is 96667200
The reverse of 77897781 is 18779877
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
seventy-seven million eight hundred ninety-seven thousand seven hundred eighty-one
Scientific notation
7.7897781 × 10^7
Engineering notation
7.7897781 × 10^6
Prime Factorization
9 × 27 × 13 × 24659
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77897781
Product of the distinct prime numbers
The prime factorization of 77897781 is 9 × 27 × 13 × 24659.
Since it has a total of 4 prime factors.
9 , 8 , 87 , 60 , 153 , 154 , 3765 , 6371 , 99270 , 18478 , 913762 , 900903 , 2923613 , 1115027 , 54654267 , 90801628 , 744603558 , 650425029 , 9539951528 , 8203193194
n×2
155795562
n×3
233693343
n×4
311591124
n×5
389488905
n÷2
38948890.5
n÷3
25965927
n÷3
19474445.25
n÷5
15579556.2
n2
6068064284723961
n3
4.7268874274535E+23
n4
3.6821404163543E+31
n5
2.8683056776441E+39
2 √n
8825.9719578073
3 √n
427.07914260466
4 √n
93.946644207269
5 √n
37.870846901046
1 , 9 , 13 , 27 , 117 , 243 , 351 , 3159 , 24659 , 221931 , 320567 , 665793 , 2885103 , 5992137 , 8655309 , 77897781
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77897780
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77897781 can be divided by 16 positive divisors.
The sum of these divisors (counting 77897781) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101001001010000000110101
3
Ternary
12102120121200000
4
Quaternary
10221022000311
5
Quinary
124420212111
6
Senary
11421341513
8
Octal
451120065
10
Decimal
77897781
12
Duodecimal
22107899
16
Hexadecimal
4a4a035
20
Vigesimal
146h491
36
Base36
1admb9
md5
5236ce5e7da19810202ecfe1a6b31367
sha1
dfde8bc82dcd18b06ceec195e27317dc8131868d
sha256
8e148a18d98626f2e0de04d3d698f07bb7ef5140d2b1bb2379d6ff791f39a051
sha512
4639be2a383fb10483eefafa4591a00e4e916d75725201c66dde0f02854e3500eddc4f0a6b4431b872047c05186d887c5852ab08cc5500db7a5fa6c6a075b518
ripemd-160
39155c8818cb2d546e1904732913fba24a946e7d
Diameter
155795562
Circumference
489446193.04109
Area
1.9063386178399E+16
Volume
1.9799939755245E+24
Surface area
7.6253544713598E+16
Circumference
489446193.04109
Perimeter
311591124
Area
6068064284723961
Diagonal
110164098.36897
Surface area
36408385708343766
Volume
4.7268874274535E+23
Space diagonal
134922914.48887
Perimeter
233693343
Area
2.627548911184E+15
Altitude
67461457.244437
Surface area
2.627548911184E+15
Volume
5.5706902564297E+22
Height
36721366.12299