20861249 is an odd 8-digits prime number following 20861248
and preceding 20861250 . In scientific notation, it is written as 2.0861249 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 20861248 positive integers (up to 20861249) that are relatively prime to 20861249.
20861249 has 2 divisors, whose sum is 20861250
The reverse of 20861249 is 94216802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred sixty-one thousand two hundred forty-nine
Scientific notation
2.0861249 × 10^7
Engineering notation
2.0861249 × 10^6
Prime Factorization
20861249
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20861249
Product of the distinct prime numbers
The prime factorization of 20861249 is 20861249.
Since it has a total of 1 prime factors.
8 , 7 , 45 , 26 , 33 , 262 , 2459 , 5459 , 14352 , 12853 , 523139 , 362960 , 4377559 , 4771808 , 3404684 , 51407217 , 170791505 , 218008157 , 9620251191 , 3559465113
n×2
41722498
n×3
62583747
n×4
83444996
n×5
104306245
n÷2
10430624.5
n÷3
6953749.6666667
n÷3
5215312.25
n÷5
4172249.8
n2
435191709840001
n3
9.078642621708E+21
n4
1.8939182431346E+29
n5
3.9509500055674E+36
2 √n
4567.4116302344
3 √n
275.28344988896
4 √n
67.582628169037
5 √n
29.098329767396
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20861250
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10430625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4567.4117397055
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999041285
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20861249 can be divided by 2 positive divisors.
The sum of these divisors (counting 20861249) is 20861250, the average is 10430625.
Base
System
Value
2
Binary
1001111100101000101000001
3
Ternary
1110020212020212
4
Quaternary
1033211011001
5
Quinary
20320024444
6
Senary
2023043505
8
Octal
117450501
10
Decimal
20861249
12
Duodecimal
6ba0595
16
Hexadecimal
13e5141
20
Vigesimal
6a7d29
36
Base36
cf4n5
md5
7c9fa2e034783b9f1fe79ef7e0080a35
sha1
e2e62a22dc7047a69627075b58713e396fe3c3a3
sha256
15ccfcfef8897dec79067472059623ed9d733b24e1fe9d6f1686d9db96d8c34f
sha512
ee858412bcf6f4e6baab220278144757f562c44b228218c790e646abd348323a0bdab962ae553eaeba60d8c60b04c4e00d0a1e7d835065c391833f849f7504a3
ripemd-160
893068ee61e7c460740a3ed09393db93a8e19abf
Diameter
41722498
Circumference
131075093.20621
Area
1.3671950785365E+15
Volume
3.8028529286567E+22
Surface area
5.4687803141461E+15
Circumference
131075093.20621
Perimeter
83444996
Area
435191709840001
Diagonal
29502261.263842
Surface area
2611150259040006
Volume
9.078642621708E+21
Space diagonal
36132743.177345
Perimeter
62583747
Area
1.8844353811891E+14
Altitude
18066371.588673
Surface area
1.8844353811891E+14
Volume
1.0699282936298E+21
Height
9834087.0879474