78997645 is an odd 8-digits composite number following 78997644
and preceding 78997646 . In scientific notation, it is written as 7.8997645 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 63198112 positive integers (up to 78997645) that are relatively prime to 78997645.
78997645 has 4 divisors, whose sum is 94797180
The reverse of 78997645 is 54679987
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
seventy-eight million nine hundred ninety-seven thousand six hundred forty-five
Scientific notation
7.8997645 × 10^7
Engineering notation
7.8997645 × 10^6
Prime Factorization
5 × 15799529
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78997645
Product of the distinct prime numbers
The prime factorization of 78997645 is 5 × 15799529.
Since it has a total of 2 prime factors.
6 , 2 , 72 , 28 , 301 , 773 , 575 , 4672 , 19605 , 4134 , 447019 , 446231 , 3194929 , 4783011 , 96949416 , 58015626 , 58119900 , 910230287 , 2183234082 , 4590683183
n×2
157995290
n×3
236992935
n×4
315990580
n×5
394988225
n÷2
39498822.5
n÷3
26332548.333333
n÷3
19749411.25
n÷5
15799529
n2
6240627915546025
n3
4.9299490864939E+23
n4
3.8945436780292E+31
n5
3.0765977891395E+39
2 √n
8888.0619372279
3 √n
429.07977897704
4 √n
94.276518482748
5 √n
37.977190137996
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
-78997644
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 78997645 can be divided by 4 positive divisors.
The sum of these divisors (counting 78997645) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101101010110100010001101
3
Ternary
12111122111101201
4
Quaternary
10231112202031
5
Quinary
130210411040
6
Senary
11501105501
8
Octal
455264215
10
Decimal
78997645
12
Duodecimal
22558291
16
Hexadecimal
4b5688d
20
Vigesimal
14dee25
36
Base36
1b16z1
md5
b5f73f62ad693fa958c60d1103e00209
sha1
923e5d23dc025f9e61030acb67b3514822acddc7
sha256
8ca9b3011c302479ffc2174e5a47bcb638d88f85e819cbdc97431858ed894ae7
sha512
75dcc587caa835ce9516a1701789327b806ee3c0ceb63f19a01166054f2f1ccd2a9343e4b5c6520cb10696b85d6ba6984a37ab696f0d3b78fa73376626db37ac
ripemd-160
97075f76ff766a3af520394495c56ba793ac68d8
Diameter
157995290
Circumference
496356842.36579
Area
1.9605510813267E+16
Volume
2.0650522443601E+24
Surface area
7.8422043253067E+16
Circumference
496356842.36579
Perimeter
315990580
Area
6240627915546025
Diagonal
111719540.95454
Surface area
37443767493276150
Volume
4.9299490864939E+23
Space diagonal
136827934.81829
Perimeter
236992935
Area
2.7022711552146E+15
Altitude
68413967.409145
Surface area
2.7022711552146E+15
Volume
5.8100007166072E+22
Height
37239846.984845