78909989 is an odd 8-digits composite number following 78909988
and preceding 78909990 . In scientific notation, it is written as 7.8909989 × 10^7.
The sum of its digits is 59. It has a total of 2 prime factors and 4 positive divisors.
There are 78817056 positive integers (up to 78909989) that are relatively prime to 78909989.
78909989 has 4 divisors, whose sum is 79002924
The reverse of 78909989 is 98990987
Previous prime number is 857
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 59
Digital Root 5
Name
seventy-eight million nine hundred nine thousand nine hundred eighty-nine
Scientific notation
7.8909989 × 10^7
Engineering notation
7.8909989 × 10^6
Prime Factorization
857 × 92077
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78909989
Product of the distinct prime numbers
The prime factorization of 78909989 is 857 × 92077.
Since it has a total of 2 prime factors.
5 , 5 , 62 , 9 , 717 , 270 , 2907 , 5334 , 70575 , 8506 , 317595 , 581718 , 2794517 , 8428339 , 70640307 , 66155409 , 526121878 , 90722227 , 5262283014 , 3510069701
n×2
157819978
n×3
236729967
n×4
315639956
n×5
394549945
n÷2
39454994.5
n÷3
26303329.666667
n÷3
19727497.25
n÷5
15781997.8
n2
6226786363980121
n3
4.9135564348702E+23
n4
3.8772868422649E+31
n5
3.0595666207297E+39
2 √n
8883.1294598244
3 √n
428.92101754843
4 √n
94.250355223863
5 √n
37.968758476321
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
-78909988
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 78909989 can be divided by 4 positive divisors.
The sum of these divisors (counting 78909989) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101101000001001000100101
3
Ternary
12111111001011012
4
Quaternary
10231001020211
5
Quinary
130200104424
6
Senary
11455152005
8
Octal
455011045
10
Decimal
78909989
12
Duodecimal
22515605
16
Hexadecimal
4b41225
20
Vigesimal
14d3ej9
36
Base36
1azbc5
md5
713b21128504d1fd252717cc1f968e53
sha1
63874a7cda192b41a64491b15f685fb82ceae402
sha256
ecc67e278eb98586aa66dc9adabe02f5972fb13f7e908f63a751fa21314ca9e3
sha512
14985024f200c5665a61a487207e45245357173ba506e50c46877d04e9a93ebb42c2fbf10a2276dc7df819840769f15fece62572ee17d9ce2453b1548f8f7363
ripemd-160
027d4456fef80330f14da3d0d53d431ddb48bf55
Diameter
157819978
Circumference
495806083.4745
Area
1.9562026296553E+16
Volume
2.0581857065049E+24
Surface area
7.8248105186212E+16
Circumference
495806083.4745
Perimeter
315639956
Area
6226786363980121
Diagonal
111595576.65051
Surface area
37360718183880726
Volume
4.9135564348702E+23
Space diagonal
136676110.1727
Perimeter
236729967
Area
2.6962775875727E+15
Altitude
68338055.086351
Surface area
2.6962775875727E+15
Volume
5.7906817913992E+22
Height
37198525.550171