42687987 is an odd 8-digits composite number following 42687986
and preceding 42687988 . In scientific notation, it is written as 4.2687987 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 28419552 positive integers (up to 42687987) that are relatively prime to 42687987.
42687987 has 8 divisors, whose sum is 56995536
The reverse of 42687987 is 78978624
Previous prime number is 757
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
forty-two million six hundred eighty-seven thousand nine hundred eighty-seven
Scientific notation
4.2687987 × 10^7
Engineering notation
4.2687987 × 10^6
Prime Factorization
3 × 757 × 18797
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
42687987
Product of the distinct prime numbers
The prime factorization of 42687987 is 3 × 757 × 18797.
Since it has a total of 3 prime factors.
6 , 8 , 87 , 64 , 471 , 521 , 6518 , 3638 , 80774 , 16015 , 268803 , 686159 , 8252618 , 479577 , 87753793 , 7780098 , 367968425 , 496956729 , 5288206108 , 9667003927
n×2
85375974
n×3
128063961
n×4
170751948
n×5
213439935
n÷2
21343993.5
n÷3
14229329
n÷3
10671996.75
n÷5
8537597.4
n2
1822264234112169
n3
7.7788791936345E+22
n4
3.3206469389244E+30
n5
1.417517333604E+38
2 √n
6533.6044416539
3 √n
349.49037941103
4 √n
80.830714716956
5 √n
33.578487896257
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
-42687986
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 42687987 can be divided by 8 positive divisors.
The sum of these divisors (counting 42687987) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100010110101110111110011
3
Ternary
2222022202220120
4
Quaternary
2202311313303
5
Quinary
41412003422
6
Senary
4122541323
8
Octal
242656763
10
Decimal
42687987
12
Duodecimal
12367843
16
Hexadecimal
28b5df3
20
Vigesimal
d6fjj7
36
Base36
pey9f
md5
29ab3c52d0589e6b4f5f976540775e29
sha1
ba40e0fd6a46fab2e7e9b40866efc7880357c201
sha256
050916e3bb58383773ef78820255e56df9621039a6afd566a815088bee11e1d8
sha512
ea133a4ffa53476518c9e96c7018e203b6d7ab51f84939d4145bf3fc0d72ba26fa26d05038157bd6f307cc0cd58cacd13ad47503587bc471fe7329dfebb38c9e
ripemd-160
6dee041d993b6038d1b3f4360ef368a73fd0bc47
Diameter
85375974
Circumference
268216532.71147
Area
5.7248119307862E+15
Volume
3.2584092970513E+23
Surface area
2.2899247723145E+16
Circumference
268216532.71147
Perimeter
170751948
Area
1822264234112169
Diagonal
60369930.165806
Surface area
10933585404673014
Volume
7.7788791936345E+22
Space diagonal
73937762.35684
Perimeter
128063961
Area
7.8906355957447E+14
Altitude
36968881.17842
Surface area
7.8906355957447E+14
Volume
9.1674970464165E+21
Height
20123310.055269