90131815 is an odd 8-digits composite number following 90131814
and preceding 90131816 . In scientific notation, it is written as 9.0131815 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 69793920 positive integers (up to 90131815) that are relatively prime to 90131815.
90131815 has 16 divisors, whose sum is 111656160
The reverse of 90131815 is 51813109
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
ninety million one hundred thirty-one thousand eight hundred fifteen
Scientific notation
9.0131815 × 10^7
Engineering notation
9.0131815 × 10^6
Prime Factorization
5 × 37 × 211 × 2309
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
90131815
Product of the distinct prime numbers
The prime factorization of 90131815 is 5 × 37 × 211 × 2309.
Since it has a total of 4 prime factors.
1 , 10 , 67 , 1 , 421 , 404 , 7230 , 6758 , 99926 , 61198 , 378300 , 959064 , 7118593 , 7426652 , 16210473 , 79858418 , 533785855 , 690750396 , 5457459333 , 5558361477
n×2
180263630
n×3
270395445
n×4
360527260
n×5
450659075
n÷2
45065907.5
n÷3
30043938.333333
n÷3
22532953.75
n÷5
18026363
n2
8123744075194225
n3
7.3220779809275E+23
n4
6.5995217799253E+31
n5
5.948268761567E+39
2 √n
9493.7776991038
3 √n
448.35915177097
4 √n
97.43601848959
5 √n
38.992010009206
1 , 5 , 37 , 185 , 211 , 1055 , 2309 , 7807 , 11545 , 39035 , 85433 , 427165 , 487199 , 2435995 , 18026363 , 90131815
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
-90131814
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 90131815 can be divided by 16 positive divisors.
The sum of these divisors (counting 90131815) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101010111110100110101100111
3
Ternary
20021121011121101
4
Quaternary
11113310311213
5
Quinary
141033204230
6
Senary
12535500531
8
Octal
527646547
10
Decimal
90131815
12
Duodecimal
26227747
16
Hexadecimal
55f4d67
20
Vigesimal
18369af
36
Base36
1hnu5j
md5
b77cc90b7218dc26ed1ba84eac8bdfaf
sha1
eec85aff932293d95d4074efd7e3548110a32155
sha256
677cd20bc0694633c2bbc792c538f696eaf59a4f36645c2a34392d8238654f55
sha512
f2a7f7fd58a22ba033e6e79e04cde62325b03a12f79fa5d46d7236639f2f76b78798b1a9581a37fce467201d2ba84124d67ce3e70ca31116f9d0594187f1b043
ripemd-160
457beed75acbe8f1aa9ea6b64ad73336a293f936
Diameter
180263630
Circumference
566314895.71743
Area
2.5521494706274E+16
Volume
3.0670648525191E+24
Surface area
1.020859788251E+17
Circumference
566314895.71743
Perimeter
360527260
Area
8123744075194225
Diagonal
127465635.1743
Surface area
48742464451165350
Volume
7.3220779809275E+23
Space diagonal
156112882.9584
Perimeter
270395445
Area
3.5176843714808E+15
Altitude
78056441.479199
Surface area
3.5176843714808E+15
Volume
8.6291516544843E+22
Height
42488545.058101