78442021 is an odd 8-digits composite number following 78442020
and preceding 78442022 . In scientific notation, it is written as 7.8442021 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 66607008 positive integers (up to 78442021) that are relatively prime to 78442021.
78442021 has 8 divisors, whose sum is 90486720
The reverse of 78442021 is 12024487
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
seventy-eight million four hundred forty-two thousand twenty-one
Scientific notation
7.8442021 × 10^7
Engineering notation
7.8442021 × 10^6
Prime Factorization
7 × 107 × 104729
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78442021
Product of the distinct prime numbers
The prime factorization of 78442021 is 7 × 107 × 104729.
Since it has a total of 3 prime factors.
1 , 4 , 46 , 53 , 480 , 708 , 3882 , 8602 , 2538 , 16019 , 290264 , 958600 , 8319111 , 759090 , 21302910 , 77834320 , 917756683 , 527174109 , 4803365233 , 6921273453
n×2
156884042
n×3
235326063
n×4
313768084
n×5
392210105
n÷2
39221010.5
n÷3
26147340.333333
n÷3
19610505.25
n÷5
15688404.2
n2
6153150658564441
n3
4.8266557317528E+23
n4
3.7861263026992E+31
n5
2.9699139894498E+39
2 √n
8856.7500246987
3 √n
428.07144445967
4 √n
94.110307749463
5 √n
37.923617262288
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78442020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78442021 can be divided by 8 positive divisors.
The sum of these divisors (counting 78442021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011001110111000100101
3
Ternary
12110121021020001
4
Quaternary
10223032320211
5
Quinary
130040121041
6
Senary
11441141301
8
Octal
453167045
10
Decimal
78442021
12
Duodecimal
2232a831
16
Hexadecimal
4acee25
20
Vigesimal
14a5511
36
Base36
1apa91
md5
278c429d355089d1ff53c0607f40750c
sha1
cbeed947c44a97954e0791bca2959baba6bdaa2e
sha256
39f8fcea15600205d4ae599cad3d4293b33ca638b1b03dc122265b9980f8a0a0
sha512
1373c6af7cca6bc7e451159907070be1653f746939a995514222a96ead5a466a9def1d8af0730c58056cd0fe89857bd9cec97695fd246f27af6a32fad3fc7d32
ripemd-160
3350fa9935301847c0c339fb4cae0a57bff885a1
Diameter
156884042
Circumference
492865753.81267
Area
1.9330692905377E+16
Volume
2.0217848251042E+24
Surface area
7.7322771621509E+16
Circumference
492865753.81267
Perimeter
313768084
Area
6153150658564441
Diagonal
110933769.95816
Surface area
36918903951386646
Volume
4.8266557317528E+23
Space diagonal
135865565.82038
Perimeter
235326063
Area
2.6643923918149E+15
Altitude
67932782.910192
Surface area
2.6643923918149E+15
Volume
5.6882683306255E+22
Height
36977923.319385