87989745 is an odd 8-digits composite number following 87989744
and preceding 87989746 . In scientific notation, it is written as 8.7989745 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 46927856 positive integers (up to 87989745) that are relatively prime to 87989745.
87989745 has 4 divisors, whose sum is 93855744
The reverse of 87989745 is 54798978
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
eighty-seven million nine hundred eighty-nine thousand seven hundred forty-five
Scientific notation
8.7989745 × 10^7
Engineering notation
8.7989745 × 10^6
Prime Factorization
15 × 5865983
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87989745
Product of the distinct prime numbers
The prime factorization of 87989745 is 15 × 5865983.
Since it has a total of 2 prime factors.
4 , 1 , 70 , 34 , 338 , 925 , 8410 , 6108 , 15198 , 34778 , 194878 , 223951 , 8778602 , 6272862 , 70102766 , 5696048 , 834618519 , 886695939 , 7990086425 , 2478049952
n×2
175979490
n×3
263969235
n×4
351958980
n×5
439948725
n÷2
43994872.5
n÷3
29329915
n÷3
21997436.25
n÷5
17597949
n2
7742195225165025
n3
6.8123378360249E+23
n4
5.9941586904568E+31
n5
5.2742449466283E+39
2 √n
9380.2849103852
3 √n
444.77873947613
4 √n
96.851870969978
5 √n
38.804885991314
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
-87989744
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 87989745 can be divided by 4 positive divisors.
The sum of these divisors (counting 87989745) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001111101001110111110001
3
Ternary
20010120100020110
4
Quaternary
11033221313301
5
Quinary
140011132440
6
Senary
12421531533
8
Octal
517516761
10
Decimal
87989745
12
Duodecimal
25573ba9
16
Hexadecimal
53e9df1
20
Vigesimal
179ie75
36
Base36
1gdxbl
md5
899316fafce0bc3f3d03bd2969d6c732
sha1
b652475e7d7ee8ebef4199bc113d1a2b99915fa9
sha256
7e19460a770268cf6a832d9f2edb2ed259542f28b5bb9fdbf480d075f5f60c75
sha512
5e4cbaff0a7dd7e083ece7d73a6f5a93c6c010c07ea8dae51cddea5f6cc9828cb0b77c753f69bd5d0ce26daae5ddda40e45e5845e3a81b275fbe8cba6efccd20
ripemd-160
bf7ef843b187a032e412d6f5452a7a8f7f54daaf
Diameter
175979490
Circumference
552855872.96648
Area
2.4322823642036E+16
Volume
2.8535453999237E+24
Surface area
9.7291294568146E+16
Circumference
552855872.96648
Perimeter
351958980
Area
7742195225165025
Diagonal
124436290.72875
Surface area
46453171350990150
Volume
6.8123378360249E+23
Space diagonal
152402708.88503
Perimeter
263969235
Area
3.3524688730257E+15
Altitude
76201354.442515
Surface area
3.3524688730257E+15
Volume
8.0284171326448E+22
Height
41478763.57625