20991007 is an odd 8-digits prime number following 20991006
and preceding 20991008 . In scientific notation, it is written as 2.0991007 × 10^7.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 20991006 positive integers (up to 20991007) that are relatively prime to 20991007.
20991007 has 2 divisors, whose sum is 20991008
The reverse of 20991007 is 70019902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred ninety-one thousand seven
Scientific notation
2.0991007 × 10^7
Engineering notation
2.0991007 × 10^6
Prime Factorization
20991007
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20991007
Product of the distinct prime numbers
The prime factorization of 20991007 is 20991007.
Since it has a total of 1 prime factors.
2 , 10 , 52 , 33 , 86 , 61 , 7352 , 8727 , 81624 , 79031 , 819990 , 400801 , 5670806 , 3180654 , 15266674 , 12695977 , 359356196 , 36338071 , 7765685761 , 3243615021
n×2
41982014
n×3
62973021
n×4
83964028
n×5
104955035
n÷2
10495503.5
n÷3
6997002.3333333
n÷3
5247751.75
n÷5
4198201.4
n2
440622374874049
n3
9.2491073553378E+21
n4
1.9414807723965E+29
n5
4.075363648374E+36
2 √n
4581.5943731413
3 √n
275.85302946727
4 √n
67.687475748038
5 √n
29.13443864911
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20991008
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10495504
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4581.5944822736
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999047211
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991007 can be divided by 2 positive divisors.
The sum of these divisors (counting 20991007) is 20991008, the average is 10495504.
Base
System
Value
2
Binary
1010000000100110000011111
3
Ternary
1110111110020201
4
Quaternary
1100010300133
5
Quinary
20333203012
6
Senary
2025524331
8
Octal
120046037
10
Decimal
20991007
12
Duodecimal
70436a7
16
Hexadecimal
1404c1f
20
Vigesimal
6b3ha7
36
Base36
chwrj
md5
e8607ff8bc183abca7d646c66bd39a01
sha1
a111b3913e255d1b7740bd26376f546f79ad1bce
sha256
2d6ee35b143cc6a307e177ef3120f5053058f49e9c3ac182d59d702e53809bb8
sha512
60fc5e60d737a1a4564f908ed11ad2878313a027e416312f780512fd517fc8264107242bdd0dfac67492c27908e91376335662323e9d741f4c434d65feab49bf
ripemd-160
a0773695ed54c8483707ced7c301ae18f68b0be7
Diameter
41982014
Circumference
131890386.7653
Area
1.3842560159116E+15
Volume
3.8742570293057E+22
Surface area
5.5370240636464E+15
Circumference
131890386.7653
Perimeter
83964028
Area
440622374874049
Diagonal
29685766.787269
Surface area
2643734249244294
Volume
9.2491073553378E+21
Space diagonal
36357490.626034
Perimeter
62973021
Area
1.9079508505838E+14
Altitude
18178745.313017
Surface area
1.9079508505838E+14
Volume
1.090017755147E+21
Height
9895255.5957562