78389917 is an odd 8-digits composite number following 78389916
and preceding 78389918 . In scientific notation, it is written as 7.8389917 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 75861180 positive integers (up to 78389917) that are relatively prime to 78389917.
78389917 has 4 divisors, whose sum is 80918656
The reverse of 78389917 is 71998387
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
seventy-eight million three hundred eighty-nine thousand nine hundred seventeen
Scientific notation
7.8389917 × 10^7
Engineering notation
7.8389917 × 10^6
Prime Factorization
31 × 2528707
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78389917
Product of the distinct prime numbers
The prime factorization of 78389917 is 31 × 2528707.
Since it has a total of 2 prime factors.
3 , 8 , 66 , 75 , 805 , 59 , 6014 , 8183 , 45904 , 49321 , 976743 , 360883 , 3460941 , 7635678 , 53618066 , 42970632 , 450953675 , 478474385 , 3063400211 , 911266167
n×2
156779834
n×3
235169751
n×4
313559668
n×5
391949585
n÷2
39194958.5
n÷3
26129972.333333
n÷3
19597479.25
n÷5
15677983.4
n2
6144979087266889
n3
4.8170440061759E+23
n4
3.7760767982947E+31
n5
2.9600634680395E+39
2 √n
8853.8080507768
3 √n
427.97664333775
4 √n
94.094675995918
5 √n
37.918577878186
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
-78389916
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 78389917 can be divided by 4 positive divisors.
The sum of these divisors (counting 78389917) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011000010001010011101
3
Ternary
12110111121202021
4
Quaternary
10223002022131
5
Quinary
130031434132
6
Senary
11440100141
8
Octal
453021235
10
Decimal
78389917
12
Duodecimal
22304651
16
Hexadecimal
4ac229d
20
Vigesimal
149iefh
36
Base36
1ao61p
md5
359e106209539e3c3fe1f036ac1125be
sha1
7e560d1d20848e8761becbc38290e492e126a897
sha256
34ea5a4816ed4183b386760b3dcc7422a5bc1cbedd54a930d12276d4eef343a7
sha512
6fc1e8161e944d38aa4fb8515c25efb780621d947933a0472b7d069b30aec21abfa32790c0b38f80043aac62328a2ffe833c75b409c05f0e4f278e19cb2d088b
ripemd-160
b8d9c96db88e13eaabd021b48505ddf38f24e5ba
Diameter
156779834
Circumference
492538374.72543
Area
1.9305021157021E+16
Volume
2.0177586749094E+24
Surface area
7.7220084628082E+16
Circumference
492538374.72543
Perimeter
313559668
Area
6144979087266889
Diagonal
110860083.7747
Surface area
36869874523601334
Volume
4.8170440061759E+23
Space diagonal
135775319.04511
Perimeter
235169751
Area
2.6608539976486E+15
Altitude
67887659.522554
Surface area
2.6608539976486E+15
Volume
5.6769408034016E+22
Height
36953361.258234