20149381 is an odd 8-digits composite number following 20149380
and preceding 20149382 . In scientific notation, it is written as 2.0149381 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16944720 positive integers (up to 20149381) that are relatively prime to 20149381.
20149381 has 8 divisors, whose sum is 23462784
The reverse of 20149381 is 18394102
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred forty-nine thousand three hundred eighty-one
Scientific notation
2.0149381 × 10^7
Engineering notation
2.0149381 × 10^6
Prime Factorization
7 × 53 × 54311
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20149381
Product of the distinct prime numbers
The prime factorization of 20149381 is 7 × 53 × 54311.
Since it has a total of 3 prime factors.
9 , 4 , 16 , 74 , 283 , 242 , 5313 , 2037 , 82010 , 47318 , 625496 , 242414 , 6138532 , 5305633 , 10494579 , 92220480 , 258077432 , 774707886 , 4790098783 , 5060697707
n×2
40298762
n×3
60448143
n×4
80597524
n×5
100746905
n÷2
10074690.5
n÷3
6716460.3333333
n÷3
5037345.25
n÷5
4029876.2
n2
405997554683161
n3
8.1805994143793E+21
n4
1.6483401440871E+29
n5
3.3213033580805E+36
2 √n
4488.8061887321
3 √n
272.1158900985
4 √n
66.998553631643
5 √n
28.896972309597
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20149380
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20149381 can be divided by 8 positive divisors.
The sum of these divisors (counting 20149381) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110111010010000101
3
Ternary
1101220200202101
4
Quaternary
1030313102011
5
Quinary
20124240011
6
Senary
1555512101
8
Octal
114672205
10
Decimal
20149381
12
Duodecimal
68b8631
16
Hexadecimal
1337485
20
Vigesimal
65id91
36
Base36
bzvd1
md5
908fb5d46d0e1b2e720ff382808e8f6b
sha1
b13f0bbccac3d511b934b2e700927b9c8d1a99ce
sha256
592244a023695516df0afa00b7576868ea8f637a865e307c309bd88fb29b142b
sha512
789f052a22be4fcac75bbceb6b3f734a04dea61c5b9a787ca3bbdd69c26efeb8086148d38ce2263bb27514dcdb94337c77aad9cc4c3f8d65d5092a5fd54727e4
ripemd-160
6c936870fd373790071bc1380a4271d32a232661
Diameter
40298762
Circumference
126602294.64796
Area
1.275478935168E+15
Volume
3.4266814696233E+22
Surface area
5.1019157406722E+15
Circumference
126602294.64796
Perimeter
80597524
Area
405997554683161
Diagonal
28495527.883623
Surface area
2435985328098966
Volume
8.1805994143793E+21
Space diagonal
34899751.633063
Perimeter
60448143
Area
1.7580209811499E+14
Altitude
17449875.816531
Surface area
1.7580209811499E+14
Volume
9.6409288667972E+20
Height
9498509.2945409