21000495 is an odd 8-digits composite number following 21000494
and preceding 21000496 . In scientific notation, it is written as 2.1000495 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 10338944 positive integers (up to 21000495) that are relatively prime to 21000495.
21000495 has 32 divisors, whose sum is 36288000
The reverse of 21000495 is 59400012
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million four hundred ninety-five
Scientific notation
2.1000495 × 10^7
Engineering notation
2.1000495 × 10^6
Prime Factorization
3 × 5 × 29 × 23 × 2099
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21000495
Product of the distinct prime numbers
The prime factorization of 21000495 is 3 × 5 × 29 × 23 × 2099.
Since it has a total of 5 prime factors.
2 , 5 , 7 , 29 , 116 , 90 , 3291 , 3259 , 43733 , 64638 , 801183 , 195520 , 5248801 , 1182121 , 91508387 , 1395363 , 972984060 , 802295784 , 2153472400 , 7458408701
n×2
42000990
n×3
63001485
n×4
84001980
n×5
105002475
n÷2
10500247.5
n÷3
7000165
n÷3
5250123.75
n÷5
4200099
n2
441020790245025
n3
9.2616549004367E+21
n4
1.9449933742835E+29
n5
4.0845823631673E+36
2 √n
4582.6297035654
3 √n
275.89458534722
4 √n
67.695123188937
5 √n
29.137071944301
1 , 3 , 5 , 15 , 23 , 29 , 69 , 87 , 115 , 145 , 345 , 435 , 667 , 2001 , 2099 , 3335 , 6297 , 10005 , 10495 , 31485 , 48277 , 60871 , 144831 , 182613 , 241385 , 304355 , 724155 , 913065 , 1400033 , 4200099 , 7000165 , 21000495
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000494
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000495 can be divided by 32 positive divisors.
The sum of these divisors (counting 21000495) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000000111000100101111
3
Ternary
1110111221021010
4
Quaternary
1100013010233
5
Quinary
20334003440
6
Senary
2030040303
8
Octal
120070457
10
Decimal
21000495
12
Duodecimal
7049093
16
Hexadecimal
140712f
20
Vigesimal
6b514f
36
Base36
ci433
md5
2cfedac3d4d0f2743b98c50982a553db
sha1
4ba246b913b9e93801f994dcb2969adc75fa365f
sha256
a3dc24e4bba5084d59cf9899fa3bd7f2280e0ec35a91b062560de5cdd4d7094a
sha512
f9530627dc25e60c51580a45da563e5986c3d74617e7370a2156215e0de1258129299fb1a0110c22a8d78cd0e2bc2b2191873b6545d9e48a9c449ff5b352dba5
ripemd-160
f92aba74e678008e30ecdab14a70ed32f497ae60
Diameter
42000990
Circumference
131950001.6275
Area
1.3855076747141E+15
Volume
3.8795129327061E+22
Surface area
5.5420306988565E+15
Circumference
131950001.6275
Perimeter
84001980
Area
441020790245025
Diagonal
29699184.845548
Surface area
2646124741470150
Volume
9.2616549004367E+21
Space diagonal
36373924.324096
Perimeter
63001485
Area
1.9096760397464E+14
Altitude
18186962.162048
Surface area
1.9096760397464E+14
Volume
1.0914964975181E+21
Height
9899728.2818495