77991649 is an odd 8-digits composite number following 77991648
and preceding 77991650 . In scientific notation, it is written as 7.7991649 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 77430420 positive integers (up to 77991649) that are relatively prime to 77991649.
77991649 has 4 divisors, whose sum is 78552880
The reverse of 77991649 is 94619977
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
seventy-seven million nine hundred ninety-one thousand six hundred forty-nine
Scientific notation
7.7991649 × 10^7
Engineering notation
7.7991649 × 10^6
Prime Factorization
139 × 561091
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
77991649
Product of the distinct prime numbers
The prime factorization of 77991649 is 139 × 561091.
Since it has a total of 2 prime factors.
4 , 7 , 4 , 19 , 758 , 607 , 842 , 1233 , 84638 , 56691 , 955039 , 498707 , 1548649 , 8813804 , 41996375 , 83609536 , 450360445 , 942884946 , 736752603 , 2800707895
n×2
155983298
n×3
233974947
n×4
311966596
n×5
389958245
n÷2
38995824.5
n÷3
25997216.333333
n÷3
19497912.25
n÷5
15598329.8
n2
6082697313739201
n3
4.7439959386639E+23
n4
3.699920661057E+31
n5
2.8856291352501E+39
2 √n
8831.2880713971
3 √n
427.25061934667
4 √n
93.974933207729
5 √n
37.879969493204
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77991648
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77991649 can be divided by 4 positive divisors.
The sum of these divisors (counting 77991649) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101001100000111011100001
3
Ternary
12102202101102121
4
Quaternary
10221200323201
5
Quinary
124431213044
6
Senary
11423344241
8
Octal
451407341
10
Decimal
77991649
12
Duodecimal
22152081
16
Hexadecimal
4a60ee1
20
Vigesimal
1478j29
36
Base36
1afmqp
md5
c04cdc7fc78bcf221943ab70b037c61a
sha1
23b29e34f017575c1987c5e6c4c5673265d51b78
sha256
74560aa689ae077fa0845ef815251360c54452a18631288a82dffe85a6fd1dad
sha512
2af1c7ec0ec9f06fda20136dd2a94da9edc8af15f83c6eab23f4ddf257f0e5f740fbf08fa09a2fb69dafbbba45b97bed687f9a8566ea90f8c9e44838ba342d97
ripemd-160
f4bfc9de3d8e168ace5559f154ac35fc56754128
Diameter
155983298
Circumference
490035983.07951
Area
1.9109357194853E+16
Volume
1.9871603719422E+24
Surface area
7.6437428779414E+16
Circumference
490035983.07951
Perimeter
311966596
Area
6082697313739201
Diagonal
110296847.76764
Surface area
36496183882435206
Volume
4.7439959386639E+23
Space diagonal
135085498.63408
Perimeter
233974947
Area
2.6338851986148E+15
Altitude
67542749.317039
Surface area
2.6338851986148E+15
Volume
5.5908528302511E+22
Height
36765615.922547