990197988 is an even 9-digits composite number following 990197987
and preceding 990197989 . In scientific notation, it is written as 9.90197988 × 10^8.
The sum of its digits is 60. It has a total of 5 prime factors and 24 positive divisors.
There are 300499200 positive integers (up to 990197988) that are relatively prime to 990197988.
990197988 has 24 divisors, whose sum is 1801645440
The reverse of 990197988 is 889791099
Previous prime number is 73
Is Prime? no
Number parity even
Number length 9
Sum of Digits 60
Digital Root 6
Name
nine hundred ninety million one hundred ninety-seven thousand nine hundred eighty-eight
Scientific notation
9.90197988 × 10^8
Engineering notation
9.90197988 × 10^6
Prime Factorization
2 × 2 × 39 × 73 × 86951
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
495098994
Product of the distinct prime numbers
The prime factorization of 990197988 is 2 × 2 × 39 × 73 × 86951.
Since it has a total of 5 prime factors.
2 , 2 , 58 , 57 , 821 , 402 , 8991 , 307 , 28575 , 83465 , 273584 , 82048 , 9633088 , 5351155 , 62241119 , 98533478 , 519443386 , 868555398 , 4504900384 , 2499640651
n×2
1980395976
n×3
2970593964
n×4
3960791952
n×5
4950989940
n÷2
495098994
n÷3
330065996
n÷3
247549497
n÷5
198039597.6
n2
980492055439248144
n3
9.7088126054593E+26
n4
9.6136467077948E+35
n5
9.5194136274013E+44
2 √n
31467.41152367
3 √n
996.72192865671
4 √n
177.39056210427
5 √n
62.971553570592
1 , 2 , 4 , 39 , 73 , 78 , 146 , 156 , 292 , 2847 , 5694 , 11388 , 86951 , 173902 , 347804 , 3391089 , 6347423 , 6782178 , 12694846 , 13564356 , 25389692 , 247549497 , 495098994 , 990197988
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-990197987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 990197988 can be divided by 24 positive divisors.
The sum of these divisors (counting 990197988) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111011000001010011100011100100
3
Ternary
2120000020021021120
4
Quaternary
323001103203210
5
Quinary
4011442313423
6
Senary
242131213540
8
Octal
7301234344
10
Decimal
990197988
12
Duodecimal
2377472b0
16
Hexadecimal
3b0538e4
20
Vigesimal
f98eej8
36
Base36
gdjdno
md5
72b725ae143915bdfdeb71e3e85c38a5
sha1
0b47aec34826ad312f1baf317394dd283c5698c7
sha256
37fc3557427098fbc46b2e16f0db73e4397df438a91c3e14c753aa624b1779f9
sha512
f8185cda6d19b7da1ca19c06592f61174d1383252fdc62a92a75b38964d91ded6343518da2f1fa02003b66e3e4ffc49dd078854229d0b15f8f3b7e9fae7dd698
ripemd-160
3cddc16bea3ac0477ef835e67061dd6c61f1fd92
Diameter
1980395976
Circumference
6221597449.4004
Area
3.0803066382711E+18
Volume
4.0668179141854E+27
Surface area
1.2321226553084E+19
Circumference
6221597449.4004
Perimeter
3960791952
Area
980492055439248144
Diagonal
1400351424.0642
Surface area
5882952332635488864
Volume
9.7088126054593E+26
Space diagonal
1715073224.7685
Perimeter
2970593964
Area
4.245655141096E+17
Altitude
857536612.38424
Surface area
4.245655141096E+17
Volume
1.1441945384316E+26
Height
466783808.02138