21000253 is an odd 8-digits composite number following 21000252
and preceding 21000254 . In scientific notation, it is written as 2.1000253 × 10^7.
The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors.
There are 19764928 positive integers (up to 21000253) that are relatively prime to 21000253.
21000253 has 4 divisors, whose sum is 22235580
The reverse of 21000253 is 35200012
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million two hundred fifty-three
Scientific notation
2.1000253 × 10^7
Engineering notation
2.1000253 × 10^6
Prime Factorization
17 × 1235309
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000253
Product of the distinct prime numbers
The prime factorization of 21000253 is 17 × 1235309.
Since it has a total of 2 prime factors.
9 , 6 , 29 , 94 , 637 , 788 , 3868 , 618 , 82112 , 32162 , 12205 , 361756 , 3891498 , 4498948 , 17088344 , 62208968 , 67522342 , 543767563 , 4858661924 , 2780481125
n×2
42000506
n×3
63000759
n×4
84001012
n×5
105001265
n÷2
10500126.5
n÷3
7000084.3333333
n÷3
5250063.25
n÷5
4200050.6
n2
441010626064009
n3
9.2613347230326E+21
n4
1.9449037230137E+29
n5
4.0843470243929E+36
2 √n
4582.6032994358
3 √n
275.89352558258
4 √n
67.694928166265
5 √n
29.137004791561
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
-21000252
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 21000253 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000253) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111000000111101
3
Ternary
1110111220221011
4
Quaternary
1100013000331
5
Quinary
20334002003
6
Senary
2030035221
8
Octal
120070075
10
Decimal
21000253
12
Duodecimal
7048b11
16
Hexadecimal
140703d
20
Vigesimal
6b50cd
36
Base36
ci3wd
md5
41387f2db206f9847d73cdb5ec609289
sha1
9c042e99b297ea51e1ed1b4088882cded035434a
sha256
94c3251c0321c39ab71fb5b28a64f26c643247730214e280627afde7a158fef7
sha512
c98ea957f11f2526db5879de92ec319493b7011f919a3c1a5507877f5bc469ad7919b0230d9a94e409c47cf9a8c95de5d7fd58068c97144f8708523cd9d4b358
ripemd-160
4a6d624fa5cec5de63ec89beb3ca7de2c2c2f3d5
Diameter
42000506
Circumference
131948481.09665
Area
1.3854757429977E+15
Volume
3.8793788171087E+22
Surface area
5.5419029719909E+15
Circumference
131948481.09665
Perimeter
84001012
Area
441010626064009
Diagonal
29698842.605866
Surface area
2646063756384054
Volume
9.2613347230326E+21
Space diagonal
36373505.167801
Perimeter
63000759
Area
1.9096320275516E+14
Altitude
18186752.5839
Surface area
1.9096320275516E+14
Volume
1.0914587642491E+21
Height
9899614.2019554