78897705 is an odd 8-digits composite number following 78897704
and preceding 78897706 . In scientific notation, it is written as 7.8897705 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors.
There are 39346560 positive integers (up to 78897705) that are relatively prime to 78897705.
78897705 has 32 divisors, whose sum is 102493440
The reverse of 78897705 is 50779887
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
seventy-eight million eight hundred ninety-seven thousand seven hundred five
Scientific notation
7.8897705 × 10^7
Engineering notation
7.8897705 × 10^6
Prime Factorization
23 × 69 × 5 × 61 × 163
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
78897705
Product of the distinct prime numbers
The prime factorization of 78897705 is 23 × 69 × 5 × 61 × 163.
Since it has a total of 5 prime factors.
8 , 1 , 40 , 18 , 809 , 885 , 4833 , 9626 , 97707 , 12984 , 946271 , 41945 , 9518838 , 3650023 , 72513703 , 76188426 , 29381086 , 457277114 , 5618950305 , 4781795562
n×2
157795410
n×3
236693115
n×4
315590820
n×5
394488525
n÷2
39448852.5
n÷3
26299235
n÷3
19724426.25
n÷5
15779541
n2
6224847854267025
n3
4.9112620967584E+23
n4
3.8748730808773E+31
n5
3.057185932475E+39
2 √n
8882.438009916
3 √n
428.89875953322
4 √n
94.246686997029
5 √n
37.967576275487
1 , 5 , 23 , 61 , 69 , 115 , 163 , 305 , 345 , 815 , 1403 , 1587 , 3749 , 4209 , 7015 , 7935 , 9943 , 11247 , 18745 , 21045 , 49715 , 56235 , 96807 , 228689 , 258681 , 484035 , 686067 , 1143445 , 1293405 , 3430335 , 15779541 , 78897705
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78897704
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78897705 can be divided by 32 positive divisors.
The sum of these divisors (counting 78897705) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101100111110001000101001
3
Ternary
12111110102022020
4
Quaternary
10230332020221
5
Quinary
130144211310
6
Senary
11455015053
8
Octal
454761051
10
Decimal
78897705
12
Duodecimal
2250a489
16
Hexadecimal
4b3e229
20
Vigesimal
14d2455
36
Base36
1az1ux
md5
ac3868333b7763f5cf4b7d58bb77c808
sha1
bedf9331c435cae0ed80581aedacac234a793741
sha256
57dd40ee19ce2e6ca51d40b96aec2003983edb872be1406ca3741070e92bf7c1
sha512
16a0b4483b2c17b07f2eadbf98e9eae09bc01c41376160c0f22b6af63eb059936dc09b1c44c45d17a8b0d73efcce37ce3643907a4bd6c44e06b2cb25d43c6d59
ripemd-160
4809cf1a3c14eaa4c88a9c3266241d51bf42f8b6
Diameter
157795410
Circumference
495728900.82619
Area
1.9555936288679E+16
Volume
2.057224656404E+24
Surface area
7.8223745154718E+16
Circumference
495728900.82619
Perimeter
315590820
Area
6224847854267025
Diagonal
111578204.45111
Surface area
37349087125602150
Volume
4.9112620967584E+23
Space diagonal
136654833.66058
Perimeter
236693115
Area
2.6954381882441E+15
Altitude
68327416.830291
Surface area
2.6954381882441E+15
Volume
5.7879778880039E+22
Height
37192734.817037