78442921 is an odd 8-digits composite number following 78442920
and preceding 78442922 . In scientific notation, it is written as 7.8442921 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 78365952 positive integers (up to 78442921) that are relatively prime to 78442921.
78442921 has 4 divisors, whose sum is 78519892
The reverse of 78442921 is 12924487
Previous prime number is 1033
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-eight million four hundred forty-two thousand nine hundred twenty-one
Scientific notation
7.8442921 × 10^7
Engineering notation
7.8442921 × 10^6
Prime Factorization
1033 × 75937
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78442921
Product of the distinct prime numbers
The prime factorization of 78442921 is 1033 × 75937.
Since it has a total of 2 prime factors.
6 , 3 , 3 , 50 , 946 , 588 , 7029 , 6440 , 6746 , 23849 , 277906 , 572304 , 2270668 , 9373430 , 9464435 , 67524753 , 878723735 , 885956523 , 4337336856 , 16773873
n×2
156885842
n×3
235328763
n×4
313771684
n×5
392214605
n÷2
39221460.5
n÷3
26147640.333333
n÷3
19610730.25
n÷5
15688584.2
n2
6153291855012241
n3
4.8268218687267E+23
n4
3.786300065296E+31
n5
2.9700843690431E+39
2 √n
8856.800833258
3 √n
428.07308160441
4 √n
94.110577690598
5 √n
37.923704284775
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
-78442920
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 78442921 can be divided by 4 positive divisors.
The sum of these divisors (counting 78442921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011001111000110101001
3
Ternary
12110121022110101
4
Quaternary
10223033012221
5
Quinary
130040133141
6
Senary
11441145401
8
Octal
453170651
10
Decimal
78442921
12
Duodecimal
2232b261
16
Hexadecimal
4acf1a9
20
Vigesimal
14a5761
36
Base36
1apay1
md5
e84975ebc972f4d7a30857ed6ebf59f9
sha1
db615c28e7e9801bd5c4285781ae020ec3fda280
sha256
46616bce43e4e030590a3474b1d18ac3698bc2f6428a920fc4b635e4b39d83aa
sha512
ef73f9fd9e22b8e9d451b2beff7e87a0a2195fe5e74b5bc819af88b1a8525eee60b6493b3ab5ede7ca5040f367c1bad18de62de842fcf18c731f12b7275d47af
ripemd-160
2cd7f775d9deb3064f0d0448bb3235f16e52db7f
Diameter
156885842
Circumference
492871408.67945
Area
1.93311364871E+16
Volume
2.0218544163971E+24
Surface area
7.7324545948401E+16
Circumference
492871408.67945
Perimeter
313771684
Area
6153291855012241
Diagonal
110935042.75036
Surface area
36919751130073446
Volume
4.8268218687267E+23
Space diagonal
135867124.66611
Perimeter
235328763
Area
2.6644535316702E+15
Altitude
67933562.333056
Surface area
2.6644535316702E+15
Volume
5.6884641249269E+22
Height
36978347.583454