678781385 is an odd 9-digits composite number following 678781384
and preceding 678781386 . In scientific notation, it is written as 6.78781385 × 10^8.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 543025104 positive integers (up to 678781385) that are relatively prime to 678781385.
678781385 has 4 divisors, whose sum is 814537668
The reverse of 678781385 is 583187876
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 53
Digital Root 8
Name
six hundred seventy-eight million seven hundred eighty-one thousand three hundred eighty-five
Scientific notation
6.78781385 × 10^8
Engineering notation
6.78781385 × 10^6
Prime Factorization
5 × 135756277
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
678781385
Product of the distinct prime numbers
The prime factorization of 678781385 is 5 × 135756277.
Since it has a total of 2 prime factors.
10 , 4 , 38 , 53 , 121 , 641 , 3095 , 2781 , 72092 , 69545 , 999256 , 112074 , 9329045 , 6115780 , 63538717 , 65264553 , 506411151 , 298737651 , 2579899752 , 9452979756
n×2
1357562770
n×3
2036344155
n×4
2715125540
n×5
3393906925
n÷2
339390692.5
n÷3
226260461.66667
n÷3
169695346.25
n÷5
135756277
n2
460744168622518225
n3
3.1274456490827E+26
n4
2.1228518891966E+35
n5
1.4409523454987E+44
2 √n
26053.433267038
3 √n
878.84032203328
4 √n
161.41075945252
5 √n
58.391009642795
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-678781384
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 678781385 can be divided by 4 positive divisors.
The sum of these divisors (counting 678781385) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000011101010110000111001001
3
Ternary
1202022020200000022
4
Quaternary
220131112013021
5
Quinary
2342232001020
6
Senary
151204350225
8
Octal
5035260711
10
Decimal
678781385
12
Duodecimal
16b3a5375
16
Hexadecimal
287561c9
20
Vigesimal
ac27d95
36
Base36
b84n2h
md5
9ca22ecb27874bf7f87ebf3d45704858
sha1
e26d5d706c3c8de6881c0fdb0acf01fab4f1ab80
sha256
67527a54d9277a01ad168c3e219743312b2c34de6e72770085fe48d79408b489
sha512
7a7a0f8dbeb27184c6202d611baf37ba2f0343a3a9700adea0878daf7b65c289891855c0e7bca16f1a81b294ff11063e1e2c275403b21cf8fe928a78a9af47bd
ripemd-160
e57eae7ad79ca917f2a0efd8294115f92237a73d
Diameter
1357562770
Circumference
4264909225.019
Area
1.4474704953288E+18
Volume
1.3100213700879E+27
Surface area
5.7898819813154E+18
Circumference
4264909225.019
Perimeter
2715125540
Area
460744168622518225
Diagonal
959941840.55339
Surface area
2764465011735109350
Volume
3.1274456490827E+26
Space diagonal
1175683846.052
Perimeter
2036344155
Area
1.9950807733632E+17
Altitude
587841923.02599
Surface area
1.9950807733632E+17
Volume
3.6857300437645E+25
Height
319980613.5178