78386985 is an odd 8-digits composite number following 78386984
and preceding 78386986 . In scientific notation, it is written as 7.8386985 × 10^7.
The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors.
There are 41180832 positive integers (up to 78386985) that are relatively prime to 78386985.
78386985 has 8 divisors, whose sum is 81328000
The reverse of 78386985 is 58968387
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
seventy-eight million three hundred eighty-six thousand nine hundred eighty-five
Scientific notation
7.8386985 × 10^7
Engineering notation
7.8386985 × 10^6
Prime Factorization
45 × 67 × 25999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78386985
Product of the distinct prime numbers
The prime factorization of 78386985 is 45 × 67 × 25999.
Since it has a total of 3 prime factors.
4 , 9 , 59 , 48 , 544 , 646 , 6698 , 9428 , 84553 , 36411 , 325703 , 654297 , 4585216 , 7268761 , 90879407 , 50388255 , 612133169 , 566735032 , 4598308796 , 3989546404
n×2
156773970
n×3
235160955
n×4
313547940
n×5
391934925
n÷2
39193492.5
n÷3
26128995
n÷3
19596746.25
n÷5
15677397
n2
6144519417390225
n3
4.8165035140318E+23
n4
3.7755118870686E+31
n5
2.9595099365896E+39
2 √n
8853.6424707574
3 √n
427.97130743397
4 √n
94.093796133207
5 √n
37.918294221976
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
-78386984
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 78386985 can be divided by 8 positive divisors.
The sum of these divisors (counting 78386985) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011000001011100101001
3
Ternary
12110111110201200
4
Quaternary
10223001130221
5
Quinary
130031340420
6
Senary
11440034413
8
Octal
453013451
10
Decimal
78386985
12
Duodecimal
22302a09
16
Hexadecimal
4ac1729
20
Vigesimal
149i795
36
Base36
1ao3s9
md5
059ba6502aeda3ba1c0ab2aebde6726c
sha1
d6943547c2a8d5104f965870731d3b8b675f5941
sha256
aff902e2447f549d5dd2af8d57f6ab50bdbf64a36e2fe98a223f4ca839091a41
sha512
6600b2f3a98fbf0a8cfb14753b815ca8619834ffb0d9aaaec0f4408b7742714166f974353f6e20d198ecc7aefc0ed74112e0730943324cc19b61b5875b6be125
ripemd-160
7674a04687c2c346370f122bcc64c8c332cee860
Diameter
156773970
Circumference
492519952.42611
Area
1.9303577061513E+16
Volume
2.0175322740895E+24
Surface area
7.7214308246052E+16
Circumference
492519952.42611
Perimeter
313547940
Area
6144519417390225
Diagonal
110855937.30054
Surface area
36867116504341350
Volume
4.8165035140318E+23
Space diagonal
135770240.67214
Perimeter
235160955
Area
2.6606549547533E+15
Altitude
67885120.33607
Surface area
2.6606549547533E+15
Volume
5.6763038273012E+22
Height
36951979.100179