20121515 is an odd 8-digits composite number following 20121514
and preceding 20121516 . In scientific notation, it is written as 2.0121515 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 16097208 positive integers (up to 20121515) that are relatively prime to 20121515.
20121515 has 4 divisors, whose sum is 24145824
The reverse of 20121515 is 51512102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty-one thousand five hundred fifteen
Scientific notation
2.0121515 × 10^7
Engineering notation
2.0121515 × 10^6
Prime Factorization
5 × 4024303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121515
Product of the distinct prime numbers
The prime factorization of 20121515 is 5 × 4024303.
Since it has a total of 2 prime factors.
7 , 2 , 56 , 74 , 958 , 245 , 938 , 1968 , 30871 , 5642 , 958327 , 934614 , 3628077 , 8495653 , 25633026 , 37120989 , 279192147 , 329522663 , 575754718 , 343576878
n×2
40243030
n×3
60364545
n×4
80486060
n×5
100607575
n÷2
10060757.5
n÷3
6707171.6666667
n÷3
5030378.75
n÷5
4024303
n2
404875365895225
n3
8.1467057479913E+21
n4
1.6392406190879E+29
n5
3.2984004705587E+36
2 √n
4485.7011715004
3 √n
271.99038947445
4 √n
66.97537735243
5 √n
28.888975152252
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
-20121514
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 20121515 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121515) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011110101011
3
Ternary
1101212021112022
4
Quaternary
1030300132223
5
Quinary
20122342030
6
Senary
1555135055
8
Octal
114603653
10
Decimal
20121515
12
Duodecimal
68a448b
16
Hexadecimal
13307ab
20
Vigesimal
65f3ff
36
Base36
bz9uz
md5
2e50c8e9acbd27cac340a5e683b0abaf
sha1
2290f642d4441f4cda42b202ab6305e22f69122f
sha256
c14db6f346c93d061d11dabed45637c44c8a3e920b3d11e2f13fd3f0a68f2c01
sha512
7ad51eb5238a681a1f6967469fed4f53caacdf824fd4310dfde1c4c6edc14cf01e6b53edd5417af3eb908fd93fe628b8301131a4435ea74ce35de3a5377f0c60
ripemd-160
f1299f75e2d0714c07d9a9041224a4d49e6d2057
Diameter
40243030
Circumference
126427207.40619
Area
1.2719534751159E+15
Volume
3.4124841238463E+22
Surface area
5.0878139004637E+15
Circumference
126427207.40619
Perimeter
80486060
Area
404875365895225
Diagonal
28456119.408494
Surface area
2429252195371350
Volume
8.1467057479913E+21
Space diagonal
34851486.305259
Perimeter
60364545
Area
1.7531617611589E+14
Altitude
17425743.15263
Surface area
1.7531617611589E+14
Volume
9.6009847978934E+20
Height
9485373.1361646