990805864 is an even 9-digits composite number following 990805863
and preceding 990805865 . In scientific notation, it is written as 9.90805864 × 10^8.
The sum of its digits is 49. It has a total of 4 prime factors and 8 positive divisors.
There are 495402928 positive integers (up to 990805864) that are relatively prime to 990805864.
990805864 has 8 divisors, whose sum is 1857761010
The reverse of 990805864 is 468508099
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 49
Digital Root 4
Name
nine hundred ninety million eight hundred five thousand eight hundred sixty-four
Scientific notation
9.90805864 × 10^8
Engineering notation
9.90805864 × 10^6
Prime Factorization
2 × 2 × 2 × 123850733
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
247701466
Product of the distinct prime numbers
The prime factorization of 990805864 is 2 × 2 × 2 × 123850733.
Since it has a total of 4 prime factors.
5 , 2 , 81 , 38 , 334 , 735 , 4744 , 4860 , 32778 , 82567 , 415309 , 267392 , 9346110 , 1455737 , 32489070 , 66586668 , 474877106 , 423338028 , 3671019526 , 306287740
n×2
1981611728
n×3
2972417592
n×4
3963223456
n×5
4954029320
n÷2
495402932
n÷3
330268621.33333
n÷3
247701466
n÷5
198161172.8
n2
981696260136786496
n3
9.726704112104E+26
n4
9.6372754716655E+35
n5
9.5486690503096E+44
2 √n
31477.068859727
3 √n
996.92584726899
4 √n
177.41778056251
5 √n
62.979283236852
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-990805863
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 990805864 can be divided by 8 positive divisors.
The sum of these divisors (counting 990805864) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011000011100111111101101000
3
Ternary
2120001101011010111
4
Quaternary
323003213331220
5
Quinary
4012121241424
6
Senary
242152224104
8
Octal
7303477550
10
Decimal
990805864
12
Duodecimal
23799b034
16
Hexadecimal
3b0e7f68
20
Vigesimal
f9caed4
36
Base36
gdwep4
md5
aa61ced9d425a756c567e51b883d9b5d
sha1
38269a5bc188f2253f789b79fb4c6c92d798229f
sha256
2c7c1c442e8fc8ade0bac36a7773e454276162a5c3e3265af59fdee66082e7d7
sha512
4183d0529a5afa47bd426b87d1727c47dc49d968a2e8887369731c21d7500fbd601a5806161cd261ccf0a8c852fc55ca75f28a05fb2b18a59558953b548a9351
ripemd-160
bb5a4d8a66991d69ee5a3ba14f2de879a6417b14
Diameter
1981611728
Circumference
6225416846.9522
Area
3.0840897589023E+18
Volume
4.0743122909637E+27
Surface area
1.2336359035609E+19
Circumference
6225416846.9522
Perimeter
3963223456
Area
981696260136786496
Diagonal
1401211090.5476
Surface area
5890177560820718976
Volume
9.726704112104E+26
Space diagonal
1716126096.8852
Perimeter
2972417592
Area
4.2508695003932E+17
Altitude
858063048.44259
Surface area
4.2508695003932E+17
Volume
1.1463030727106E+26
Height
467070363.51586