42390987 is an odd 8-digits composite number following 42390986
and preceding 42390988 . In scientific notation, it is written as 4.2390987 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 28243560 positive integers (up to 42390987) that are relatively prime to 42390987.
42390987 has 8 divisors, whose sum is 56555520
The reverse of 42390987 is 78909324
Previous prime number is 2239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
forty-two million three hundred ninety thousand nine hundred eighty-seven
Scientific notation
4.2390987 × 10^7
Engineering notation
4.2390987 × 10^6
Prime Factorization
3 × 2239 × 6311
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
42390987
Product of the distinct prime numbers
The prime factorization of 42390987 is 3 × 2239 × 6311.
Since it has a total of 3 prime factors.
6 , 3 , 41 , 99 , 622 , 141 , 4502 , 9281 , 82465 , 26803 , 244961 , 720446 , 1237000 , 5285253 , 62336402 , 43256621 , 289652292 , 314932599 , 3633696163 , 4545861320
n×2
84781974
n×3
127172961
n×4
169563948
n×5
211954935
n÷2
21195493.5
n÷3
14130329
n÷3
10597746.75
n÷5
8478197.4
n2
1796995778834169
n3
7.6176424699614E+22
n4
3.2291938291478E+30
n5
1.3688871363189E+38
2 √n
6510.836121421
3 √n
348.67797050478
4 √n
80.689752270167
5 √n
33.531633114802
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
-42390986
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 42390987 can be divided by 8 positive divisors.
The sum of these divisors (counting 42390987) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100001101101010111001011
3
Ternary
2221202200111120
4
Quaternary
2201231113023
5
Quinary
41323002422
6
Senary
4112330323
8
Octal
241552713
10
Decimal
42390987
12
Duodecimal
122439a3
16
Hexadecimal
286d5cb
20
Vigesimal
d4ih97
36
Base36
p8l3f
md5
5d1d1b2e367ce5001d3369b46612cbc5
sha1
75ca718132be32e25b40810442195c41b11d887b
sha256
b642afebc38451ec7c5f0cdc9d42de3775b09b0eb1b60bd87eb06e2815d7d124
sha512
4d69291c7a0c41ac1c50c35b96f914ba448fdc493e2d3c7e3526525b74a7b95a6da57b9cfa1e1a1767db7dd0c2d56f2ba20ad805be017f4ec12b1c53b9091871
ripemd-160
28cfbaef8f09c233d002617560c4be7f3c5d3889
Diameter
84781974
Circumference
266350426.67524
Area
5.6454287373173E+15
Volume
3.1908706161739E+23
Surface area
2.2581714949269E+16
Circumference
266350426.67524
Perimeter
169563948
Area
1796995778834169
Diagonal
59949908.737782
Surface area
10781974673005014
Volume
7.6176424699614E+22
Space diagonal
73423343.266992
Perimeter
127172961
Area
7.781219974819E+14
Altitude
36711671.633496
Surface area
7.781219974819E+14
Volume
8.9774777452739E+21
Height
19983302.912594