87942390 is an even 8-digits composite number following 87942389
and preceding 87942391 . In scientific notation, it is written as 8.7942390 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 23451296 positive integers (up to 87942390) that are relatively prime to 87942390.
87942390 has 16 divisors, whose sum is 211061808
The reverse of 87942390 is 09324978
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million nine hundred forty-two thousand three hundred ninety
Scientific notation
8.7942390 × 10^7
Engineering notation
8.7942390 × 10^6
Prime Factorization
2 × 3 × 5 × 2931413
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
87942390
Product of the distinct prime numbers
The prime factorization of 87942390 is 2 × 3 × 5 × 2931413.
Since it has a total of 4 prime factors.
4 , 2 , 81 , 64 , 624 , 662 , 8892 , 2518 , 70265 , 82544 , 974094 , 389317 , 7951803 , 3697174 , 21141800 , 5948943 , 365946575 , 431196611 , 7614927518 , 2280941236
n×2
175884780
n×3
263827170
n×4
351769560
n×5
439711950
n÷2
43971195
n÷3
29314130
n÷3
21985597.5
n÷5
17588478
n2
7733863958912100
n3
6.8013448048159E+23
n4
5.981265173496E+31
n5
5.26006754581E+39
2 √n
9377.7603936121
3 √n
444.69893367276
4 √n
96.838837217369
5 √n
38.800708229247
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 2931413 , 5862826 , 8794239 , 14657065 , 17588478 , 29314130 , 43971195 , 87942390
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
-87942389
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 87942390 can be divided by 16 positive divisors.
The sum of these divisors (counting 87942390) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001111011110010011110110
3
Ternary
20010110221021120
4
Quaternary
11033132103312
5
Quinary
140003124030
6
Senary
12420524410
8
Octal
517362366
10
Decimal
87942390
12
Duodecimal
25550706
16
Hexadecimal
53de4f6
20
Vigesimal
179cfja
36
Base36
1gcws6
md5
332744bddf12cdd6647abfb81e2b39bc
sha1
d550a090605fa51c1078536e77a45dfd3bbd92c8
sha256
93dab2cfee073288cb924cf9eed60cf14272d9d844507b6f6ebfd09ada80ed17
sha512
d6af01dee82c220f978a2a10aa6ed35aaae3a4eb0a55d1642ac73cb5e5807f0cba5e140c091b773f86d735caf03db67bf88f48ab04d91a3c582529a6c732a03d
ripemd-160
3fe288b2a501d925b9bd20f54fa6949dd5547d49
Diameter
175884780
Circumference
552558332.72626
Area
2.4296650197181E+16
Volume
2.8489406497788E+24
Surface area
9.7186600788725E+16
Circumference
552558332.72626
Perimeter
351769560
Area
7733863958912100
Diagonal
124369320.6455
Surface area
46403183753472600
Volume
6.8013448048159E+23
Space diagonal
152320687.61904
Perimeter
263827170
Area
3.3488613289154E+15
Altitude
76160343.809519
Surface area
3.3488613289154E+15
Volume
8.0154617211221E+22
Height
41456440.215168