78984987 is an odd 8-digits composite number following 78984986
and preceding 78984988 . In scientific notation, it is written as 7.8984987 × 10^7.
The sum of its digits is 60. It has a total of 2 prime factors and 4 positive divisors.
There are 52656656 positive integers (up to 78984987) that are relatively prime to 78984987.
78984987 has 4 divisors, whose sum is 105313320
The reverse of 78984987 is 78948987
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 60
Digital Root 6
Name
seventy-eight million nine hundred eighty-four thousand nine hundred eighty-seven
Scientific notation
7.8984987 × 10^7
Engineering notation
7.8984987 × 10^6
Prime Factorization
3 × 26328329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78984987
Product of the distinct prime numbers
The prime factorization of 78984987 is 3 × 26328329.
Since it has a total of 2 prime factors.
8 , 2 , 4 , 36 , 359 , 682 , 6726 , 4139 , 50730 , 28578 , 727368 , 652868 , 6079920 , 3148417 , 22176818 , 52053135 , 272892432 , 603937348 , 9753633967 , 3949944026
n×2
157969974
n×3
236954961
n×4
315939948
n×5
394924935
n÷2
39492493.5
n÷3
26328329
n÷3
19746246.75
n÷5
15796997.4
n2
6238628171390169
n3
4.9275796501509E+23
n4
3.8920481460863E+31
n5
3.07413372222E+39
2 √n
8887.3498299549
3 √n
429.0568602265
4 √n
94.272741712305
5 √n
37.975973023014
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
-78984986
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 78984987 can be divided by 4 positive divisors.
The sum of these divisors (counting 78984987) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101101010011011100011011
3
Ternary
12111121212000220
4
Quaternary
10231103130123
5
Quinary
130210004422
6
Senary
11500531123
8
Octal
455233433
10
Decimal
78984987
12
Duodecimal
22550aa3
16
Hexadecimal
4b5371b
20
Vigesimal
14dd297
36
Base36
1b0x7f
md5
fe0602454652d1f5954da02a16ea6f14
sha1
24222a821489e7d38691392baea39554f49d128e
sha256
b3fa3be16eacb8078b59360d8b01ce6176a2f6f05f2444675ec2fac55b97e52b
sha512
44ada6529ed4327f16f7ed49ed0bf452c0f586e997a7a909aaa756b5d22e03a3ed46f6699b19fcb6789d01a4ce3e720268a0c292101114f8483dfe28fec8cabe
ripemd-160
e665ff7d8087e4ebecf50751bf34ddf846793e20
Diameter
157969974
Circumference
496277309.80617
Area
1.9599228431718E+16
Volume
2.0640597371857E+24
Surface area
7.8396913726871E+16
Circumference
496277309.80617
Perimeter
315939948
Area
6238628171390169
Diagonal
111701639.83926
Surface area
37431769028341014
Volume
4.9275796501509E+23
Space diagonal
136806010.51917
Perimeter
236954961
Area
2.7014052405946E+15
Altitude
68403005.259584
Surface area
2.7014052405946E+15
Volume
5.8072083090975E+22
Height
37233879.946421