20989512 is an even 8-digits composite number following 20989511
and preceding 20989513 . In scientific notation, it is written as 2.0989512 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 16 positive divisors.
There are 6996480 positive integers (up to 20989512) that are relatively prime to 20989512.
20989512 has 16 divisors, whose sum is 43728300
The reverse of 20989512 is 21598902
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred eighty-nine thousand five hundred twelve
Scientific notation
2.0989512 × 10^7
Engineering notation
2.0989512 × 10^6
Prime Factorization
2 × 2 × 2 × 9 × 291521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5247378
Product of the distinct prime numbers
The prime factorization of 20989512 is 2 × 2 × 2 × 9 × 291521.
Since it has a total of 5 prime factors.
7 , 10 , 61 , 21 , 604 , 474 , 8982 , 1437 , 99924 , 29008 , 3660 , 390603 , 9342693 , 9951033 , 42032878 , 36549121 , 593178328 , 668291299 , 9867363977 , 928896800
n×2
41979024
n×3
62968536
n×4
83958048
n×5
104947560
n÷2
10494756
n÷3
6996504
n÷3
5247378
n÷5
4197902.4
n2
440559613998144
n3
9.2471313047294E+21
n4
1.9409277348619E+29
n5
4.0739125982017E+36
2 √n
4581.4312174254
3 √n
275.84648047115
4 √n
67.686270523832
5 √n
29.134023640657
1 , 2 , 4 , 8 , 9 , 18 , 36 , 72 , 291521 , 583042 , 1166084 , 2332168 , 2623689 , 5247378 , 10494756 , 20989512
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
-20989511
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 20989512 can be divided by 16 positive divisors.
The sum of these divisors (counting 20989512) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100011001001000
3
Ternary
1110111101012100
4
Quaternary
1100010121020
5
Quinary
20333131022
6
Senary
2025513400
8
Octal
120043110
10
Decimal
20989512
12
Duodecimal
7042860
16
Hexadecimal
1404648
20
Vigesimal
6b3dfc
36
Base36
chvm0
md5
8c65da471f82fc5a8aabaaa9cb121372
sha1
d5177c399cabebeab15fb263b8609db45d51e028
sha256
30e8fc860e9258a8cce79848a40a75c759801fafe34963f83f735cc036f57810
sha512
ae7b1aa46d6f317586c5563e1c31f0645fb6d4c81c1c5c1653d5c5d8f5f8a6049321376441b3b8295118fc89578ec35e0ab1197e8587be633f475db9df2018a0
ripemd-160
c5d8af65db850cb87ebd40aa81797410b6c41623
Diameter
41979024
Circumference
131880993.40327
Area
1.3840588468049E+15
Volume
3.8734293031624E+22
Surface area
5.5362353872197E+15
Circumference
131880993.40327
Perimeter
83958048
Area
440559613998144
Diagonal
29683652.537993
Surface area
2643357683988864
Volume
9.2471313047294E+21
Space diagonal
36354901.210077
Perimeter
62968536
Area
1.9076790880193E+14
Altitude
18177450.605038
Surface area
1.9076790880193E+14
Volume
1.0897848753494E+21
Height
9894550.8459976