20154949 is an odd 8-digits composite number following 20154948
and preceding 20154950 . In scientific notation, it is written as 2.0154949 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 19824480 positive integers (up to 20154949) that are relatively prime to 20154949.
20154949 has 4 divisors, whose sum is 20485420
The reverse of 20154949 is 94945102
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred fifty-four thousand nine hundred forty-nine
Scientific notation
2.0154949 × 10^7
Engineering notation
2.0154949 × 10^6
Prime Factorization
61 × 330409
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20154949
Product of the distinct prime numbers
The prime factorization of 20154949 is 61 × 330409.
Since it has a total of 2 prime factors.
5 , 10 , 30 , 2 , 129 , 526 , 7169 , 2189 , 42556 , 7269 , 242881 , 654562 , 3235638 , 2288142 , 43883681 , 3724323 , 145595833 , 970189482 , 8264004314 , 1986014421
n×2
40309898
n×3
60464847
n×4
80619796
n×5
100774745
n÷2
10077474.5
n÷3
6718316.3333333
n÷3
5038737.25
n÷5
4030989.8
n2
406221969192601
n3
8.1873830717564E+21
n4
1.6501628825471E+29
n5
3.3258948739431E+36
2 √n
4489.4263553376
3 √n
272.14095293186
4 √n
67.003181680705
5 √n
28.898569188032
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
-20154948
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 20154949 can be divided by 4 positive divisors.
The sum of these divisors (counting 20154949) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000101001000101
3
Ternary
1101220222101121
4
Quaternary
1030320221011
5
Quinary
20124424244
6
Senary
1555553541
8
Octal
114705105
10
Decimal
20154949
12
Duodecimal
68bb8b1
16
Hexadecimal
1338a45
20
Vigesimal
65j779
36
Base36
bzznp
md5
0f65e3a67b53aa9c26e6ef878c465e41
sha1
fbdd92b767e6d986a2e6d92a2e35480be13beb6b
sha256
13db1d4f1e1c28d1eed69578a3155764b088db6215827f39ca74dd0a6c18f931
sha512
1c977a8caa281c4cef0e4b721e8ef88e27b27e0e5ade28612450066b871f78c9b797040b15ff049ec15439354c0633dcd3b81a2ae57359d796707c853d5d3247
ripemd-160
b12c6fd5d02995ccc0b9b25cbcef8811dd7648b1
Diameter
40309898
Circumference
126637279.42375
Area
1.2761839541423E+15
Volume
3.4295230013807E+22
Surface area
5.104735816569E+15
Circumference
126637279.42375
Perimeter
80619796
Area
406221969192601
Diagonal
28503402.224738
Surface area
2437331815155606
Volume
8.1873830717564E+21
Space diagonal
34909395.69196
Perimeter
60464847
Area
1.7589927244807E+14
Altitude
17454697.84598
Surface area
1.7589927244807E+14
Volume
9.6489234836849E+20
Height
9501134.0749127