21249999 is an odd 8-digits composite number following 21249998
and preceding 21250000 . In scientific notation, it is written as 2.1249999 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 12830400 positive integers (up to 21249999) that are relatively prime to 21249999.
21249999 has 16 divisors, whose sum is 25083840
The reverse of 21249999 is 99994212
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million two hundred forty-nine thousand nine hundred ninety-nine
Scientific notation
2.1249999 × 10^7
Engineering notation
2.1249999 × 10^6
Prime Factorization
9 × 57 × 23 × 1801
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21249999
Product of the distinct prime numbers
The prime factorization of 21249999 is 9 × 57 × 23 × 1801.
Since it has a total of 4 prime factors.
4 , 10 , 70 , 24 , 295 , 176 , 8038 , 1653 , 89780 , 85334 , 442190 , 537927 , 4264247 , 8200412 , 48995189 , 37465006 , 481349364 , 86231730 , 7472451457 , 2130165133
n×2
42499998
n×3
63749997
n×4
84999996
n×5
106249995
n÷2
10624999.5
n÷3
7083333
n÷3
5312499.75
n÷5
4249999.8
n2
451562457500001
n3
9.5957017703126E+21
n4
2.0390865302344E+29
n5
4.3330586728395E+36
2 √n
4609.7721201812
3 √n
276.98290849289
4 √n
67.895302637084
5 √n
29.205979954086
1 , 9 , 23 , 57 , 207 , 513 , 1311 , 1801 , 11799 , 16209 , 41423 , 102657 , 372807 , 923913 , 2361111 , 21249999
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
-21249998
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 21249999 can be divided by 16 positive divisors.
The sum of these divisors (counting 21249999) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001000011111111001111
3
Ternary
1110222121112000
4
Quaternary
1101003333033
5
Quinary
20414444444
6
Senary
2035243343
8
Octal
121037717
10
Decimal
21249999
12
Duodecimal
7149553
16
Hexadecimal
1443fcf
20
Vigesimal
6cg4jj
36
Base36
cnglr
md5
4c00fdf184e5577f8f5be8af7a76abaa
sha1
01f1bbd5becd9c3526b2be16b9dceee72ff2747a
sha256
5d5ff12d54c0c970cf3eb6a314ade292c45262cf293c51d1538255329555d510
sha512
fa5dbc181a96156a8f488eeb2699b14d8fd5a7e37df64357737040283ea46c380e9f63cb1395a8f3e04521cb85bb930c0b666b280433c3a002dfd2ba188c9e40
ripemd-160
85ef8adb6311c87af368627aa5cb0bd0c3c83f90
Diameter
42499998
Circumference
133517681.49438
Area
1.418625299119E+15
Volume
4.0194381583537E+22
Surface area
5.6745011964758E+15
Circumference
133517681.49438
Perimeter
84999996
Area
451562457500001
Diagonal
30052036.786215
Surface area
2709374745000006
Volume
9.5957017703126E+21
Space diagonal
36806077.928788
Perimeter
63749997
Area
1.9553227979517E+14
Altitude
18403038.964394
Surface area
1.9553227979517E+14
Volume
1.130864298672E+21
Height
10017345.595405