78143721 is an odd 8-digits composite number following 78143720
and preceding 78143722 . In scientific notation, it is written as 7.8143721 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 52095812 positive integers (up to 78143721) that are relatively prime to 78143721.
78143721 has 4 divisors, whose sum is 104191632
The reverse of 78143721 is 12734187
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-eight million one hundred forty-three thousand seven hundred twenty-one
Scientific notation
7.8143721 × 10^7
Engineering notation
7.8143721 × 10^6
Prime Factorization
3 × 26047907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78143721
Product of the distinct prime numbers
The prime factorization of 78143721 is 3 × 26047907.
Since it has a total of 2 prime factors.
9 , 10 , 71 , 89 , 856 , 699 , 5342 , 5054 , 70515 , 72817 , 698507 , 113967 , 5619818 , 1253272 , 61720732 , 18615128 , 329890086 , 926007557 , 4484737791 , 740902530
n×2
156287442
n×3
234431163
n×4
312574884
n×5
390718605
n÷2
39071860.5
n÷3
26047907
n÷3
19535930.25
n÷5
15628744.2
n2
6106441131725841
n3
4.7718003210051E+23
n4
3.7288623295233E+31
n5
2.9138717752568E+39
2 √n
8839.8937210806
3 √n
427.52813056571
4 √n
94.020709001159
5 √n
37.894730035424
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
-78143720
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 78143721 can be divided by 4 positive divisors.
The sum of these divisors (counting 78143721) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101010000110000011101001
3
Ternary
12110001010000220
4
Quaternary
10222012003221
5
Quinary
130001044341
6
Senary
11430520253
8
Octal
452060351
10
Decimal
78143721
12
Duodecimal
22206089
16
Hexadecimal
4a860e9
20
Vigesimal
1487j61
36
Base36
1aiw2x
md5
65f092d766a4f5e714dc8aa65e6c6238
sha1
645bc70a0a7383079e83b2f41b773fafdcf93750
sha256
2d08b0d7164acbe4be3eb8b3e894d8c6dea8d93a6ec72cdf4073fde1539490a8
sha512
0b7efe04fdbb45220bc665c59bf9a8a814cd8a32bdce039946dcad3cba97788ac81b3369adff31c33d8bdd14a2640b5aa0081270e636ab9dd2568c5c01f4e1b3
ripemd-160
988429f3eade13641ec36b9fdf7f2f8d78028fb4
Diameter
156287442
Circumference
490991479.63554
Area
1.9183950599008E+16
Volume
1.9988070443823E+24
Surface area
7.6735802396034E+16
Circumference
490991479.63554
Perimeter
312574884
Area
6106441131725841
Diagonal
110511910.0525
Surface area
36638646790355046
Volume
4.7718003210051E+23
Space diagonal
135348895.06449
Perimeter
234431163
Area
2.6441665733944E+15
Altitude
67674447.532244
Surface area
2.6441665733944E+15
Volume
5.6236206090847E+22
Height
36837303.350833