78390090 is an even 8-digits composite number following 78390089
and preceding 78390091 . In scientific notation, it is written as 7.8390090 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 20904000 positive integers (up to 78390090) that are relatively prime to 78390090.
78390090 has 16 divisors, whose sum is 156780360
The reverse of 78390090 is 09009387
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-eight million three hundred ninety thousand ninety
Scientific notation
7.8390090 × 10^7
Engineering notation
7.8390090 × 10^6
Prime Factorization
2 × 9 × 5 × 871001
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78390090
Product of the distinct prime numbers
The prime factorization of 78390090 is 2 × 9 × 5 × 871001.
Since it has a total of 4 prime factors.
6 , 10 , 39 , 66 , 433 , 248 , 7394 , 6826 , 47454 , 42141 , 188571 , 759340 , 5093001 , 7089011 , 63978671 , 63296911 , 954919811 , 236009109 , 9084103631 , 2337002709
n×2
156780180
n×3
235170270
n×4
313560360
n×5
391950450
n÷2
39195045
n÷3
26130030
n÷3
19597522.5
n÷5
15678018
n2
6145006210208100
n3
4.8170758986877E+23
n4
3.7761101323496E+31
n5
2.960096131248E+39
2 √n
8853.8178205789
3 √n
427.97695817376
4 √n
94.094727910648
5 √n
37.918594614798
1 , 2 , 5 , 9 , 10 , 18 , 45 , 90 , 871001 , 1742002 , 4355005 , 7839009 , 8710010 , 15678018 , 39195045 , 78390090
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
-78390089
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 78390090 can be divided by 16 positive divisors.
The sum of these divisors (counting 78390090) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101011000010001101001010
3
Ternary
12110111121222200
4
Quaternary
10223002031022
5
Quinary
130031440330
6
Senary
11440101030
8
Octal
453021512
10
Decimal
78390090
12
Duodecimal
22304776
16
Hexadecimal
4ac234a
20
Vigesimal
149if4a
36
Base36
1ao66i
md5
02ddfaaba9c12412bce7c3435eaff155
sha1
50e6a036afed3af967c4fe4d7ff1741bd1bc17e0
sha256
c8ccb4ea9381cf8099fb21383594b6850611b7d96eba1cc61df53b761d5be6ff
sha512
891e3b90a34148a607db61ea6e4dff6989ea89c9ea59b531439fb7f34687d466ef3510782525a25cf796e8b1a683d71eb1f76be7d11583fae599320c807a3730
ripemd-160
2e1d0e218845a782b923ab8e93c34ede6efe3924
Diameter
156780180
Circumference
492539461.71649
Area
1.9305106366253E+16
Volume
2.0177720340136E+24
Surface area
7.7220425465014E+16
Circumference
492539461.71649
Perimeter
313560360
Area
6145006210208100
Diagonal
110860328.43365
Surface area
36870037261248600
Volume
4.8170758986877E+23
Space diagonal
135775618.6899
Perimeter
235170270
Area
2.6608657422267E+15
Altitude
67887809.344948
Surface area
2.6608657422267E+15
Volume
5.6769783890873E+22
Height
36953442.811216