42781421 is an odd 8-digits composite number following 42781420
and preceding 42781422 . In scientific notation, it is written as 4.2781421 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 41699920 positive integers (up to 42781421) that are relatively prime to 42781421.
42781421 has 8 divisors, whose sum is 43870464
The reverse of 42781421 is 12418724
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
forty-two million seven hundred eighty-one thousand four hundred twenty-one
Scientific notation
4.2781421 × 10^7
Engineering notation
4.2781421 × 10^6
Prime Factorization
47 × 263 × 3461
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
42781421
Product of the distinct prime numbers
The prime factorization of 42781421 is 47 × 263 × 3461.
Since it has a total of 3 prime factors.
3 , 6 , 45 , 53 , 707 , 871 , 8841 , 222 , 45884 , 96379 , 38006 , 433216 , 8824640 , 5647006 , 72359360 , 47502980 , 346951476 , 566394837 , 5012969076 , 1506948667
n×2
85562842
n×3
128344263
n×4
171125684
n×5
213907105
n÷2
21390710.5
n÷3
14260473.666667
n÷3
10695355.25
n÷5
8556284.2
n2
1830249982779241
n3
7.8300695048521E+22
n4
3.3498149994634E+30
n5
1.4330984576416E+38
2 √n
6540.7507978825
3 √n
349.74517778358
4 √n
80.87490833307
5 √n
33.593174132226
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
-42781420
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 42781421 can be divided by 8 positive divisors.
The sum of these divisors (counting 42781421) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100011001100101011101101
3
Ternary
2222111112002002
4
Quaternary
2203030223231
5
Quinary
41423001141
6
Senary
4124542045
8
Octal
243145355
10
Decimal
42781421
12
Duodecimal
123b1925
16
Hexadecimal
28ccaed
20
Vigesimal
d77db1
36
Base36
pgyct
md5
c4b8abd47b1fc82c7c43b9af353619bb
sha1
0c7252125390a15fdefde6caebcd5043296c4964
sha256
c9e08656177bc420d3edfeb34006d339329baef680ab4e2a8d1b3b741b680f41
sha512
e53db162bd572bb197cc40e106d29db5886760574eeb17efd7b14dd23b5f5603467f694098776298a88c655d4e8afecd8f3ba789f94027d6fe3cf448426ab69c
ripemd-160
a7e34342701335086505dfc98479f22ca6487028
Diameter
85562842
Circumference
268803595.84746
Area
5.7498999001321E+15
Volume
3.2798518444721E+23
Surface area
2.2999599600528E+16
Circumference
268803595.84746
Perimeter
171125684
Area
1830249982779241
Diagonal
60502065.795793
Surface area
10981499896675446
Volume
7.8300695048521E+22
Space diagonal
74099594.791994
Perimeter
128344263
Area
7.9252149018143E+14
Altitude
37049797.395997
Surface area
7.9252149018143E+14
Volume
9.2278254067382E+21
Height
20167355.265264