42181894 is an even 8-digits composite number following 42181893
and preceding 42181895 . In scientific notation, it is written as 4.2181894 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21090946 positive integers (up to 42181894) that are relatively prime to 42181894.
42181894 has 4 divisors, whose sum is 63272844
The reverse of 42181894 is 49818124
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
forty-two million one hundred eighty-one thousand eight hundred ninety-four
Scientific notation
4.2181894 × 10^7
Engineering notation
4.2181894 × 10^6
Prime Factorization
2 × 21090947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
42181894
Product of the distinct prime numbers
The prime factorization of 42181894 is 2 × 21090947.
Since it has a total of 2 prime factors.
10 , 9 , 20 , 44 , 30 , 45 , 9251 , 2162 , 92597 , 62069 , 271392 , 807258 , 2758111 , 7748325 , 20392427 , 85670509 , 271795652 , 119109895 , 9401695208 , 9893386240
n×2
84363788
n×3
126545682
n×4
168727576
n×5
210909470
n÷2
21090947
n÷3
14060631.333333
n÷3
10545473.5
n÷5
8436378.8
n2
1779312181427236
n3
7.5054757829872E+22
n4
3.1659518389753E+30
n5
1.3354584488076E+38
2 √n
6494.7589639647
3 √n
348.10374213598
4 √n
80.590067402656
5 √n
33.498488786437
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
-42181893
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 42181894 can be divided by 4 positive divisors.
The sum of these divisors (counting 42181894) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100000111010010100000110
3
Ternary
2221101001200101
4
Quaternary
2200322110012
5
Quinary
41244310034
6
Senary
4104034314
8
Octal
240722406
10
Decimal
42181894
12
Duodecimal
1216299a
16
Hexadecimal
283a506
20
Vigesimal
d3ceee
36
Base36
p43ra
md5
4f4f6a2b0beca44b34d45cd5ee7171b2
sha1
dfec41024bbcd157c0696842455eed1fa3337955
sha256
3def53e21c2328316d6992e35ae103e06e65efeadfdea67f28fe06779ae5529d
sha512
cdffd3b5e0792861a486ab20154284747d07f29afde49078632b19243c58dda968dd5d544763b21a23fcb67f2741da79840962b92cb881157ee67e10ab4e2627
ripemd-160
f2c29362298261f1000852fd51c5fc4ff6db436c
Diameter
84363788
Circumference
265036656.60981
Area
5.5898740776146E+15
Volume
3.1438863442038E+23
Surface area
2.2359496310459E+16
Circumference
265036656.60981
Perimeter
168727576
Area
1779312181427236
Diagonal
59654206.581384
Surface area
10675873088563416
Volume
7.5054757829872E+22
Space diagonal
73061183.567485
Perimeter
126545682
Area
7.7046477518955E+14
Altitude
36530591.783742
Surface area
7.7046477518955E+14
Volume
8.8452880369695E+21
Height
19884735.527128