20451207 is an odd 8-digits composite number following 20451206
and preceding 20451208 . In scientific notation, it is written as 2.0451207 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 11655360 positive integers (up to 20451207) that are relatively prime to 20451207.
20451207 has 16 divisors, whose sum is 31246592
The reverse of 20451207 is 70215402
Previous prime number is 457
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million four hundred fifty-one thousand two hundred seven
Scientific notation
2.0451207 × 10^7
Engineering notation
2.0451207 × 10^6
Prime Factorization
7 × 3 × 457 × 2131
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20451207
Product of the distinct prime numbers
The prime factorization of 20451207 is 7 × 3 × 457 × 2131.
Since it has a total of 4 prime factors.
7 , 4 , 42 , 61 , 342 , 477 , 1870 , 8664 , 22562 , 16446 , 943188 , 727112 , 9755081 , 4807450 , 70674021 , 11316214 , 604855990 , 34074815 , 9581921554 , 6740989133
n×2
40902414
n×3
61353621
n×4
81804828
n×5
102256035
n÷2
10225603.5
n÷3
6817069
n÷3
5112801.75
n÷5
4090241.4
n2
418251867756849
n3
8.5537555256319E+21
n4
1.7493462488209E+29
n5
3.577624224931E+36
2 √n
4522.3010735686
3 √n
273.46787430961
4 √n
67.248056280971
5 √n
28.983030169573
1 , 3 , 7 , 21 , 457 , 1371 , 2131 , 3199 , 6393 , 9597 , 14917 , 44751 , 973867 , 2921601 , 6817069 , 20451207
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
-20451206
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 20451207 can be divided by 16 positive divisors.
The sum of these divisors (counting 20451207) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110000000111110000111
3
Ternary
1102111000210010
4
Quaternary
1032000332013
5
Quinary
20213414312
6
Senary
2010201303
8
Octal
116007607
10
Decimal
20451207
12
Duodecimal
6a23233
16
Hexadecimal
1380f87
20
Vigesimal
67g807
36
Base36
c6c93
md5
ce31abeb9549f5f2925ca4f36901752f
sha1
7f8a4229a14526f6e30d0dcc40aeb65ce10bfbd7
sha256
4044933ec2a67f5342f8310cbf57d61e2b32db79708bd19df42f18a47b43f588
sha512
4764f9f17811fc523ed06034daeb4f0b95a1c49b3ee436242d66ccdf1ee32f7800bdfbda7bb9eae84f964b38b168247f818054a1cfb5920815c5bbcb34c98f62
ripemd-160
7a988fcfe9df6883551f3f3a3d6d58ddaa468f98
Diameter
40902414
Circumference
128498723.33649
Area
1.3139769950951E+15
Volume
3.5829887359905E+22
Surface area
5.2559079803805E+15
Circumference
128498723.33649
Perimeter
81804828
Area
418251867756849
Diagonal
28922374.3063
Surface area
2509511206541094
Volume
8.5537555256319E+21
Space diagonal
35422529.600108
Perimeter
61353621
Area
1.8110837132886E+14
Altitude
17711264.800054
Surface area
1.8110837132886E+14
Volume
1.008069756131E+21
Height
9640791.4354332