990492721 is an odd 9-digits composite number following 990492720
and preceding 990492722 . In scientific notation, it is written as 9.90492721 × 10^8.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 989632512 positive integers (up to 990492721) that are relatively prime to 990492721.
990492721 has 4 divisors, whose sum is 991352932
The reverse of 990492721 is 127294099
Previous prime number is 1153
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
nine hundred ninety million four hundred ninety-two thousand seven hundred twenty-one
Scientific notation
9.90492721 × 10^8
Engineering notation
9.90492721 × 10^6
Prime Factorization
1153 × 859057
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
990492721
Product of the distinct prime numbers
The prime factorization of 990492721 is 1153 × 859057.
Since it has a total of 2 prime factors.
4 , 10 , 61 , 81 , 320 , 630 , 6027 , 1670 , 60936 , 53779 , 355459 , 754210 , 6420443 , 9669871 , 23518483 , 92142078 , 404661438 , 319989002 , 2765595816 , 864088928
n×2
1980985442
n×3
2971478163
n×4
3961970884
n×5
4952463605
n÷2
495246360.5
n÷3
330164240.33333
n÷3
247623180.25
n÷5
198098544.2
n2
981075830353983841
n3
9.7174846871465E+26
n4
9.6250978490476E+35
n5
9.5335893583944E+44
2 √n
31472.094321796
3 √n
996.82081046485
4 √n
177.40376073183
5 √n
62.97530182817
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
-990492720
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 990492721 can be divided by 4 positive divisors.
The sum of these divisors (counting 990492721) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011000010011011100000110001
3
Ternary
2120000210020120121
4
Quaternary
323002123200301
5
Quinary
4012031231341
6
Senary
242141410241
8
Octal
7302334061
10
Decimal
990492721
12
Duodecimal
237869981
16
Hexadecimal
3b09b831
20
Vigesimal
f9abbg1
36
Base36
gdpp2p
md5
4ab13077d133207b556175e31865e0a3
sha1
adff87d0804b44ad42ca955f47d74456d86dc4a4
sha256
49703da6c744207d765409ece48280a8f199d800290ae9ee62de2a13678d0568
sha512
185b868b00cbb51c4a3907c15cc0c95464634f4204783433dee9c1dc6400497c4a2ff8031abab7b3e8fb8e2ff81b3bf49de4de80d4ffacd23bb804c367ecaa20
ripemd-160
4f18bfe7b18d043136a04b969f2a44ae2d6dd1a5
Diameter
1980985442
Circumference
6223449311.4555
Area
3.0821406212546E+18
Volume
4.0704504672681E+27
Surface area
1.2328562485018E+19
Circumference
6223449311.4555
Perimeter
3961970884
Area
981075830353983841
Diagonal
1400768239.47
Surface area
5886454982123903046
Volume
9.7174846871465E+26
Space diagonal
1715583717.2991
Perimeter
2971478163
Area
4.2481829606273E+17
Altitude
857791858.64957
Surface area
4.2481829606273E+17
Volume
1.1452165530596E+26
Height
466922746.49001