20121481 is an odd 8-digits composite number following 20121480
and preceding 20121482 . In scientific notation, it is written as 2.0121481 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 19246612 positive integers (up to 20121481) that are relatively prime to 20121481.
20121481 has 4 divisors, whose sum is 20996352
The reverse of 20121481 is 18412102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-one thousand four hundred eighty-one
Scientific notation
2.0121481 × 10^7
Engineering notation
2.0121481 × 10^6
Prime Factorization
23 × 874847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121481
Product of the distinct prime numbers
The prime factorization of 20121481 is 23 × 874847.
Since it has a total of 2 prime factors.
4 , 3 , 95 , 55 , 580 , 611 , 9684 , 9118 , 99943 , 28153 , 259755 , 268537 , 5875417 , 8281276 , 92154302 , 91269887 , 54477104 , 618922628 , 4564378677 , 8420934126
n×2
40242962
n×3
60364443
n×4
80485924
n×5
100607405
n÷2
10060740.5
n÷3
6707160.3333333
n÷3
5030370.25
n÷5
4024296.2
n2
404873997633361
n3
8.1466644507737E+21
n4
1.6392295395962E+29
n5
3.2983726035623E+36
2 √n
4485.6973816788
3 √n
271.99023627726
4 √n
66.975349059776
5 √n
28.888965389311
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
-20121480
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 20121481 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121481) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011110001001
3
Ternary
1101212021111001
4
Quaternary
1030300132021
5
Quinary
20122341411
6
Senary
1555135001
8
Octal
114603611
10
Decimal
20121481
12
Duodecimal
68a4461
16
Hexadecimal
1330789
20
Vigesimal
65f3e1
36
Base36
bz9u1
md5
f6cb17392e225841522d54f47894e381
sha1
6b0b024bee97736149961bfb45087de38510157a
sha256
b1b3ff7245039a17d50712ae48cce9c10b8fd142d3f631cf5ef3dfd3d76ca5bb
sha512
187dd19baf8ec1b4b4f1b9028798200eaca69a3cd73fc1a661a42804bc6c9f76f555aafc167016f60d591eeece7444341d1a83c7abfb98901d5619e525bee949
ripemd-160
174b947d044584e5789f8977d313f2e3e8a52c59
Diameter
40242962
Circumference
126426993.77789
Area
1.2719491765945E+15
Volume
3.4124668253082E+22
Surface area
5.087796706378E+15
Circumference
126426993.77789
Perimeter
80485924
Area
404873997633361
Diagonal
28456071.325233
Surface area
2429243985800166
Volume
8.1466644507737E+21
Space diagonal
34851427.415532
Perimeter
60364443
Area
1.7531558364113E+14
Altitude
17425713.707766
Surface area
1.7531558364113E+14
Volume
9.6009361286558E+20
Height
9485357.1084109