90131979 is an odd 8-digits composite number following 90131978
and preceding 90131980 . In scientific notation, it is written as 9.0131979 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 51448800 positive integers (up to 90131979) that are relatively prime to 90131979.
90131979 has 16 divisors, whose sum is 137491200
The reverse of 90131979 is 97913109
Previous prime number is 1301
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
ninety million one hundred thirty-one thousand nine hundred seventy-nine
Scientific notation
9.0131979 × 10^7
Engineering notation
9.0131979 × 10^6
Prime Factorization
3 × 7 × 1301 × 3299
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
90131979
Product of the distinct prime numbers
The prime factorization of 90131979 is 3 × 7 × 1301 × 3299.
Since it has a total of 4 prime factors.
5 , 8 , 58 , 65 , 351 , 801 , 4867 , 9804 , 65045 , 10853 , 796420 , 427407 , 4618602 , 9476285 , 54314091 , 32224997 , 261948679 , 981602072 , 2502855782 , 1656947178
n×2
180263958
n×3
270395937
n×4
360527916
n×5
450659895
n÷2
45065989.5
n÷3
30043993
n÷3
22532994.75
n÷5
18026395.8
n2
8123773638456441
n3
7.3221179498211E+23
n4
6.599569812888E+31
n5
5.9483228778425E+39
2 √n
9493.786336336
3 √n
448.35942370919
4 √n
97.436062812164
5 √n
38.992024198835
1 , 3 , 7 , 21 , 1301 , 3299 , 3903 , 9107 , 9897 , 23093 , 27321 , 69279 , 4291999 , 12875997 , 30043993 , 90131979
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-90131978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 90131979 can be divided by 16 positive divisors.
The sum of these divisors (counting 90131979) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101010111110100111000001011
3
Ternary
20021121011211110
4
Quaternary
11113310320023
5
Quinary
141033210404
6
Senary
12535501403
8
Octal
527647013
10
Decimal
90131979
12
Duodecimal
26227863
16
Hexadecimal
55f4e0b
20
Vigesimal
18369ij
36
Base36
1hnua3
md5
b2e32cfb6ef58635f55effce9b11a58d
sha1
f8cc34d180589ba4179d6793be09b536ad69c90a
sha256
463f16b1082801c8d17681840c0e34289f513bfd83c20efc0d5deac4816755ea
sha512
3d2791bb5cc16412cc4058b0bf9ea57c1a130bb0ab83effee8ad3b86480077792600eda8c69257e5f29d6353041acc57c2e1ef1dcd5414107c445b54c0b66acf
ripemd-160
81d9a942c38534d8bc337b66e088f58768283f0a
Diameter
180263958
Circumference
566315926.15982
Area
2.5521587582001E+16
Volume
3.0670815946501E+24
Surface area
1.02086350328E+17
Circumference
566315926.15982
Perimeter
360527916
Area
8123773638456441
Diagonal
127465867.10533
Surface area
48742641830738646
Volume
7.3221179498211E+23
Space diagonal
156113167.01473
Perimeter
270395937
Area
3.5176971727488E+15
Altitude
78056583.507366
Surface area
3.5176971727488E+15
Volume
8.6291987582771E+22
Height
42488622.368442