20989997 is an odd 8-digits composite number following 20989996
and preceding 20989998 . In scientific notation, it is written as 2.0989997 × 10^7.
The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors.
There are 17370864 positive integers (up to 20989997) that are relatively prime to 20989997.
20989997 has 8 divisors, whose sum is 24816000
The reverse of 20989997 is 79998902
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
twenty million nine hundred eighty-nine thousand nine hundred ninety-seven
Scientific notation
2.0989997 × 10^7
Engineering notation
2.0989997 × 10^6
Prime Factorization
29 × 7 × 103399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20989997
Product of the distinct prime numbers
The prime factorization of 20989997 is 29 × 7 × 103399.
Since it has a total of 3 prime factors.
9 , 6 , 61 , 58 , 168 , 755 , 4418 , 5557 , 31153 , 76623 , 181989 , 592598 , 2440417 , 4691300 , 23463285 , 40474940 , 383679297 , 348666817 , 9399819099 , 4350916703
n×2
41979994
n×3
62969991
n×4
83959988
n×5
104949985
n÷2
10494998.5
n÷3
6996665.6666667
n÷3
5247499.25
n÷5
4197999.4
n2
440579974060009
n3
9.2477723337797E+21
n4
1.9411071354272E+29
n5
4.0743832949295E+36
2 √n
4581.4841481773
3 √n
275.84860509594
4 √n
67.686661523356
5 √n
29.134158278097
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
-20989996
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 20989997 can be divided by 8 positive divisors.
The sum of these divisors (counting 20989997) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100100000101101
3
Ternary
1110111101212022
4
Quaternary
1100010200231
5
Quinary
20333134442
6
Senary
2025515525
8
Octal
120044055
10
Decimal
20989997
12
Duodecimal
7042ba5
16
Hexadecimal
140482d
20
Vigesimal
6b3ejh
36
Base36
chvzh
md5
5be98834f3bfc733a9598e7503c76dcc
sha1
6fe45a3aaaf4f77ea0079316f724e5078ca3bf17
sha256
b6bef6cbae8920de7bb23dc2f1bf8d18820cd27dcb16650b3c9145c02fca1e45
sha512
d2d952a074e10e38826d93d21eb4d1ffc94828fe55c90c20acb2f4cfcc70ce9899e402a161bccff3dab07bb34b9abd8d05a193cae150b3892ceb3633d1933ca2
ripemd-160
614e7931aeabbffba771f6c8e082203b0ee76802
Diameter
41979994
Circumference
131884040.74814
Area
1.3841228098257E+15
Volume
3.8736978167831E+22
Surface area
5.5364912393028E+15
Circumference
131884040.74814
Perimeter
83959988
Area
440579974060009
Diagonal
29684338.431571
Surface area
2643479844360054
Volume
9.2477723337797E+21
Space diagonal
36355741.254718
Perimeter
62969991
Area
1.9077672496733E+14
Altitude
18177870.627359
Surface area
1.9077672496733E+14
Volume
1.0898604213475E+21
Height
9894779.4771902