78857390 is an even 8-digits composite number following 78857389
and preceding 78857391 . In scientific notation, it is written as 7.8857390 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 29687424 positive integers (up to 78857390) that are relatively prime to 78857390.
78857390 has 8 divisors, whose sum is 119677944
The reverse of 78857390 is 09375887
Previous prime number is 85
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-eight million eight hundred fifty-seven thousand three hundred ninety
Scientific notation
7.8857390 × 10^7
Engineering notation
7.8857390 × 10^6
Prime Factorization
2 × 85 × 463867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78857390
Product of the distinct prime numbers
The prime factorization of 78857390 is 2 × 85 × 463867.
Since it has a total of 3 prime factors.
1 , 9 , 45 , 23 , 355 , 909 , 1068 , 4812 , 85421 , 9752 , 843486 , 269912 , 9495886 , 1420091 , 31022549 , 96399113 , 80657541 , 651581489 , 878720743 , 27119439
n×2
157714780
n×3
236572170
n×4
315429560
n×5
394286950
n÷2
39428695
n÷3
26285796.666667
n÷3
19714347.5
n÷5
15771478
n2
6218487957612100
n3
4.9037373008372E+23
n4
3.8669592478967E+31
n5
3.0493831352549E+39
2 √n
8880.16835426
3 √n
428.82569446142
4 √n
94.234645190927
5 √n
37.963695362125
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
-78857389
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 78857390 can be divided by 8 positive divisors.
The sum of these divisors (counting 78857390) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101100110100010010101110
3
Ternary
12111101101000002
4
Quaternary
10230310102232
5
Quinary
130141414030
6
Senary
11454104302
8
Octal
454642256
10
Decimal
78857390
12
Duodecimal
224ab092
16
Hexadecimal
4b344ae
20
Vigesimal
14ch39a
36
Base36
1ay6r2
md5
a9c083ebbff12da4433aa8b69644b7da
sha1
73e0a86a0f6dcc8e75cd1a873c216104356fcbd2
sha256
86716d3c2b02d8dd29722aa9657ac78151d0234dcf06de00748755bee8564699
sha512
1c397fee7c6ac505a9ae8de80ca57e90c5167a9a3cb5d3aec98f329382a08839b3e6c8c8c4277e661d5cba1dd9de7974fa8e0eb072d279173a175406da77c885
ripemd-160
e13cb5efdf95bb1434361714aebe577c10c810cd
Diameter
157714780
Circumference
495475594.21053
Area
1.9535956084071E+16
Volume
2.0540726772593E+24
Surface area
7.8143824336283E+16
Circumference
495475594.21053
Perimeter
315429560
Area
6218487957612100
Diagonal
111521190.43134
Surface area
37310927745672600
Volume
4.9037373008372E+23
Space diagonal
136585006.03227
Perimeter
236572170
Area
2.6926842722098E+15
Altitude
68292503.016137
Surface area
2.6926842722098E+15
Volume
5.7791098309657E+22
Height
37173730.143781