42138839 is an odd 8-digits composite number following 42138838
and preceding 42138840 . In scientific notation, it is written as 4.2138839 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 40876416 positive integers (up to 42138839) that are relatively prime to 42138839.
42138839 has 8 divisors, whose sum is 43414800
The reverse of 42138839 is 93883124
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
forty-two million one hundred thirty-eight thousand eight hundred thirty-nine
Scientific notation
4.2138839 × 10^7
Engineering notation
4.2138839 × 10^6
Prime Factorization
149 × 43 × 6577
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
42138839
Product of the distinct prime numbers
The prime factorization of 42138839 is 149 × 43 × 6577.
Since it has a total of 3 prime factors.
10 , 2 , 7 , 21 , 667 , 922 , 7498 , 1139 , 45109 , 93675 , 707801 , 479341 , 5709771 , 630250 , 71709588 , 90241585 , 238278251 , 369532458 , 3522331007 , 2715213517
n×2
84277678
n×3
126416517
n×4
168555356
n×5
210694195
n÷2
21069419.5
n÷3
14046279.666667
n÷3
10534709.75
n÷5
8427767.8
n2
1775681752267921
n3
7.4825167474056E+22
n4
3.1530456853373E+30
n5
1.3286568449407E+38
2 √n
6491.4435220527
3 √n
347.98526548351
4 √n
80.569494984471
5 √n
33.491647620662
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
-42138838
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 42138839 can be divided by 8 positive divisors.
The sum of these divisors (counting 42138839) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100000101111110011010111
3
Ternary
2221021212121202
4
Quaternary
2200233303113
5
Quinary
41241420324
6
Senary
4103103115
8
Octal
240576327
10
Decimal
42138839
12
Duodecimal
12141a9b
16
Hexadecimal
282fcd7
20
Vigesimal
d3771j
36
Base36
p36jb
md5
6232a618a1ab842e3e0c56bc4392152b
sha1
bac911cb1ba7957803e4de4e6eeaae9cad205574
sha256
ebaf865baeb0fa50d34306a7ae9300eac455c1d24dad64ae979266b94bf16d99
sha512
3ad680b0b1b03f1625dcc14500ead93e606ab9772b61c95190c8668f078a9435e50aa69e6f8e8f0be4c3cc9e0c1d37c847d167e6f589da50f9c0a9aed2483573
ripemd-160
7e0e3ca339b4b451ad4bddd9f708713dc4e51a50
Diameter
84277678
Circumference
264766134.06641
Area
5.5784687480384E+15
Volume
3.1342692858683E+23
Surface area
2.2313874992153E+16
Circumference
264766134.06641
Perimeter
168555356
Area
1775681752267921
Diagonal
59593317.616456
Surface area
10654090513607526
Volume
7.4825167474056E+22
Space diagonal
72986610.119965
Perimeter
126416517
Area
7.6889275325024E+14
Altitude
36493305.059982
Surface area
7.6889275325024E+14
Volume
8.818230554054E+21
Height
19864439.205485