20921207 is an odd 8-digits composite number following 20921206
and preceding 20921208 . In scientific notation, it is written as 2.0921207 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20902056 positive integers (up to 20921207) that are relatively prime to 20921207.
20921207 has 4 divisors, whose sum is 20940360
The reverse of 20921207 is 70212902
Previous prime number is 1163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million nine hundred twenty-one thousand two hundred seven
Scientific notation
2.0921207 × 10^7
Engineering notation
2.0921207 × 10^6
Prime Factorization
1163 × 17989
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921207
Product of the distinct prime numbers
The prime factorization of 20921207 is 1163 × 17989.
Since it has a total of 2 prime factors.
9 , 1 , 58 , 75 , 524 , 943 , 426 , 8210 , 44385 , 4443 , 697407 , 511313 , 3359537 , 9111676 , 39493472 , 10393429 , 118189875 , 275510406 , 2222815126 , 8454268167
n×2
41842414
n×3
62763621
n×4
83684828
n×5
104606035
n÷2
10460603.5
n÷3
6973735.6666667
n÷3
5230301.75
n÷5
4184241.4
n2
437696902336849
n3
9.157147497048E+21
n4
1.9157857831527E+29
n5
4.0080550936995E+36
2 √n
4573.970594571
3 √n
275.54693135393
4 √n
67.631136280348
5 √n
29.115037063628
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921206
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921207 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921207) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011101101110111
3
Ternary
1110100220111112
4
Quaternary
1033303231313
5
Quinary
20323434312
6
Senary
2024225235
8
Octal
117635567
10
Decimal
20921207
12
Duodecimal
700b21b
16
Hexadecimal
13f3b77
20
Vigesimal
6af307
36
Base36
cgewn
md5
6ba1d1e3cc2553a16d257427cf2ae2f1
sha1
2bce4a714ef33b4664d53535b746a56dd73a95ad
sha256
47ff637f0f5dd484a07baf855741885929b04f54015a1ddf5236936418e66fad
sha512
932595567344792083bca1ca194a4381097513c462bc1b0f5ea4820bc587c53f1d71c5b4441a1aa3d971f9dc4ff500aeb15c3445f0379e0ef05fc262ddbaad65
ripemd-160
8fc7ef39297d8242851c0e40d6d9a5b01bfe14af
Diameter
41842414
Circumference
131451820.43086
Area
1.3750653728805E+15
Volume
3.8357369739419E+22
Surface area
5.5002614915218E+15
Circumference
131451820.43086
Perimeter
83684828
Area
437696902336849
Diagonal
29587054.680615
Surface area
2626181414021094
Volume
9.157147497048E+21
Space diagonal
36236593.479666
Perimeter
62763621
Area
1.8952831829073E+14
Altitude
18118296.739833
Surface area
1.8952831829073E+14
Volume
1.0791801819147E+21
Height
9862351.560205