20921867 is an odd 8-digits prime number following 20921866
and preceding 20921868 . In scientific notation, it is written as 2.0921867 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20921866 positive integers (up to 20921867) that are relatively prime to 20921867.
20921867 has 2 divisors, whose sum is 20921868
The reverse of 20921867 is 76812902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred twenty-one thousand eight hundred sixty-seven
Scientific notation
2.0921867 × 10^7
Engineering notation
2.0921867 × 10^6
Prime Factorization
20921867
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20921867
Product of the distinct prime numbers
The prime factorization of 20921867 is 20921867.
Since it has a total of 1 prime factors.
5 , 3 , 41 , 42 , 251 , 877 , 3807 , 4622 , 51918 , 4386 , 693069 , 889935 , 1214824 , 9532717 , 87325218 , 70459254 , 912372461 , 29607289 , 2518143856 , 159398787
n×2
41843734
n×3
62765601
n×4
83687468
n×5
104609335
n÷2
10460933.5
n÷3
6973955.6666667
n÷3
5230466.75
n÷5
4184373.4
n2
437724518765689
n3
9.1580141642547E+21
n4
1.9160275432865E+29
n5
4.0086873428978E+36
2 √n
4574.0427413832
3 √n
275.54982887735
4 √n
67.631669662837
5 √n
29.115220759358
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20921868
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10460934
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4574.0428506957
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999044062
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921867 can be divided by 2 positive divisors.
The sum of these divisors (counting 20921867) is 20921868, the average is 10460934.
Base
System
Value
2
Binary
1001111110011111000001011
3
Ternary
1110100221101222
4
Quaternary
1033303320023
5
Quinary
20323444432
6
Senary
2024232255
8
Octal
117637013
10
Decimal
20921867
12
Duodecimal
700b68b
16
Hexadecimal
13f3e0b
20
Vigesimal
6af4d7
36
Base36
cgfez
md5
7567e3a734af6477d16f483d6f974321
sha1
3d8a628a8b83de8c0facca3af03f156e48ac0e11
sha256
2df10d77fdb5d4a90b89f536711c75c6ce221a77e80b94142c3e27cb68be761a
sha512
acab4345a30e8af877c546539f86ef8b769dd3581008627ecc29f27a6b6150efe61b6eda2c26061a2529713acfd4f09f4fbf040798f802e7ba160f680bfbcf0d
ripemd-160
41c6d187ce75e0a25d4ac61b0bc92d58ac2d1ac7
Diameter
41843734
Circumference
131455967.33317
Area
1.3751521324504E+15
Volume
3.8361000026525E+22
Surface area
5.5006085298017E+15
Circumference
131455967.33317
Perimeter
83687468
Area
437724518765689
Diagonal
29587988.061566
Surface area
2626347112594134
Volume
9.1580141642547E+21
Space diagonal
36237736.633199
Perimeter
62765601
Area
1.895402765552E+14
Altitude
18118868.316599
Surface area
1.895402765552E+14
Volume
1.0792823196245E+21
Height
9862662.6871887