42021918 is an even 8-digits composite number following 42021917
and preceding 42021919 . In scientific notation, it is written as 4.2021918 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13650000 positive integers (up to 42021918) that are relatively prime to 42021918.
42021918 has 16 divisors, whose sum is 63866880
The reverse of 42021918 is 81912024
Previous prime number is 251
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
forty-two million twenty-one thousand nine hundred eighteen
Scientific notation
4.2021918 × 10^7
Engineering notation
4.2021918 × 10^6
Prime Factorization
2 × 639 × 251 × 131
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
42021918
Product of the distinct prime numbers
The prime factorization of 42021918 is 2 × 639 × 251 × 131.
Since it has a total of 4 prime factors.
10 , 6 , 3 , 5 , 19 , 675 , 8281 , 2419 , 15003 , 12987 , 680465 , 515270 , 2940846 , 7033636 , 33888738 , 34205459 , 430724673 , 390833061 , 7618355140 , 6388614672
n×2
84043836
n×3
126065754
n×4
168087672
n×5
210109590
n÷2
21010959
n÷3
14007306
n÷3
10505479.5
n÷5
8404383.6
n2
1765841592398724
n3
7.4204050596769E+22
n4
3.1181965294453E+30
n5
1.3103259886823E+38
2 √n
6482.4314882612
3 √n
347.66312028455
4 √n
80.513548476397
5 √n
33.47304136398
1 , 2 , 131 , 251 , 262 , 502 , 639 , 1278 , 32881 , 65762 , 83709 , 160389 , 167418 , 320778 , 21010959 , 42021918
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-42021917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 42021918 can be divided by 16 positive divisors.
The sum of these divisors (counting 42021918) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10100000010011010000011110
3
Ternary
2221001221020100
4
Quaternary
2200103100132
5
Quinary
41224200133
6
Senary
4100401530
8
Octal
240232036
10
Decimal
42021918
12
Duodecimal
120a62a6
16
Hexadecimal
281341e
20
Vigesimal
d2cefi
36
Base36
p0obi
md5
ee22dc9d473e81275a55c57e2dfea218
sha1
30e92fc2784b48d0d43bde6c2fdc06f01b8adc98
sha256
8fb8320da6c4a90a2d6c4f33568b5e2bffb9624073030ff058562ecabe8431ac
sha512
2692d8b5cd00131de6da6161879bdbc9febbf2dc1f9039ce1106753bf04cf649661801d112a8f4e0e44803f6a8ffa3ad1e19e339f49d6922779059708d918bac
ripemd-160
97124651ec954c8ad6b23a56ac2dd70953924033
Diameter
84043836
Circumference
264031497.75711
Area
5.5475549740831E+15
Volume
3.1082520029522E+23
Surface area
2.2190219896333E+16
Circumference
264031497.75711
Perimeter
168087672
Area
1765841592398724
Diagonal
59427966.35253
Surface area
10595049554392344
Volume
7.4204050596769E+22
Space diagonal
72784097.007493
Perimeter
126065754
Area
7.6463183903823E+14
Altitude
36392048.503747
Surface area
7.6463183903823E+14
Volume
8.7450312280808E+21
Height
19809322.11751