20121509 is an odd 8-digits composite number following 20121508
and preceding 20121510 . In scientific notation, it is written as 2.0121509 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 19843056 positive integers (up to 20121509) that are relatively prime to 20121509.
20121509 has 8 divisors, whose sum is 20401920
The reverse of 20121509 is 90512102
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-one thousand five hundred nine
Scientific notation
2.0121509 × 10^7
Engineering notation
2.0121509 × 10^6
Prime Factorization
503 × 109 × 367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121509
Product of the distinct prime numbers
The prime factorization of 20121509 is 503 × 109 × 367.
Since it has a total of 3 prime factors.
9 , 5 , 87 , 29 , 938 , 420 , 2995 , 2543 , 37043 , 87438 , 316087 , 712545 , 1457276 , 4491578 , 33316640 , 6580556 , 861844143 , 887567500 , 5249688249 , 6938167026
n×2
40243018
n×3
60364527
n×4
80486036
n×5
100607545
n÷2
10060754.5
n÷3
6707169.6666667
n÷3
5030377.25
n÷5
4024301.8
n2
404875124437081
n3
8.1466984602368E+21
n4
1.6392386638794E+29
n5
3.2983955528398E+36
2 √n
4485.7005027086
3 √n
271.99036243967
4 √n
66.975372359611
5 √n
28.888973429381
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
-20121508
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 20121509 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121509) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011110100101
3
Ternary
1101212021112002
4
Quaternary
1030300132211
5
Quinary
20122342014
6
Senary
1555135045
8
Octal
114603645
10
Decimal
20121509
12
Duodecimal
68a4485
16
Hexadecimal
13307a5
20
Vigesimal
65f3f9
36
Base36
bz9ut
md5
8d46fb273614fbbc644c86b02292cbde
sha1
2aa82fcb41aff27eb1d7d30f2b28ba18117ea26c
sha256
4cff2897bff76bc62d94ef88537c90ed98925f2037851d4a721606db1934d5b8
sha512
391b84ad27b37e4ccf36160c45030e0c5d338a2081959989e028fa04534a29f0be6425f8a8353da33e81713b5af1f3347e8a254e25c57801dde7b2cd8e73c3fa
ripemd-160
51024b6d172fae28b803ff9584f975b2778018ee
Diameter
40243018
Circumference
126427169.70708
Area
1.2719527165528E+15
Volume
3.4124810711588E+22
Surface area
5.0878108662111E+15
Circumference
126427169.70708
Perimeter
80486036
Area
404875124437081
Diagonal
28456110.923212
Surface area
2429250746622486
Volume
8.1466984602368E+21
Space diagonal
34851475.912954
Perimeter
60364527
Area
1.7531607156145E+14
Altitude
17425737.956477
Surface area
1.7531607156145E+14
Volume
9.6009762091925E+20
Height
9485370.3077374