20121530 is an even 8-digits composite number following 20121529
and preceding 20121531 . In scientific notation, it is written as 2.0121530 × 10^7.
The sum of its digits is 14. It has a total of 4 prime factors and 16 positive divisors.
There are 6753600 positive integers (up to 20121530) that are relatively prime to 20121530.
20121530 has 16 divisors, whose sum is 33097344
The reverse of 20121530 is 03512102
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand five hundred thirty
Scientific notation
2.0121530 × 10^7
Engineering notation
2.0121530 × 10^6
Prime Factorization
2 × 55 × 13 × 14071
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121530
Product of the distinct prime numbers
The prime factorization of 20121530 is 2 × 55 × 13 × 14071.
Since it has a total of 4 prime factors.
10 , 6 , 56 , 39 , 488 , 79 , 3125 , 8625 , 96875 , 98184 , 62246 , 208959 , 9247419 , 9753293 , 42017397 , 57620239 , 231831006 , 675473230 , 1253762277 , 1787810872
n×2
40243060
n×3
60364590
n×4
80486120
n×5
100607650
n÷2
10060765
n÷3
6707176.6666667
n÷3
5030382.5
n÷5
4024306
n2
404875969540900
n3
8.1467239673963E+21
n4
1.6392455071168E+29
n5
3.2984127648817E+36
2 √n
4485.7028434795
3 √n
271.99045706139
4 √n
66.975389834472
5 √n
28.888979459428
1 , 2 , 13 , 26 , 55 , 110 , 715 , 1430 , 14071 , 28142 , 182923 , 365846 , 773905 , 1547810 , 10060765 , 20121530
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121529
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121530 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121530) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011110111010
3
Ternary
1101212021112212
4
Quaternary
1030300132322
5
Quinary
20122342110
6
Senary
1555135122
8
Octal
114603672
10
Decimal
20121530
12
Duodecimal
68a44a2
16
Hexadecimal
13307ba
20
Vigesimal
65f3ga
36
Base36
bz9ve
md5
93e2244549fdd0a0104a3b9a99aecf02
sha1
9d8e9b4b17eee869dc8459789107c43d99414162
sha256
de02d884f8a571363f53783ca5bd87ef895b3637c9dab6cdfcbb676f561ec967
sha512
d54d5a291cb8ea29dde6bf614cf3b444b4a6fbe8b0c00b51322c9b22adfdd28ee1d14ed38507e9af4a7e350c4eeea0924171c7b555f2dfb046c142b95bcd710f
ripemd-160
07328223be3684d86464bc5c9fb3ba825f6c813a
Diameter
40243060
Circumference
126427301.65397
Area
1.2719553715247E+15
Volume
3.4124917555728E+22
Surface area
5.0878214860989E+15
Circumference
126427301.65397
Perimeter
80486120
Area
404875969540900
Diagonal
28456140.621697
Surface area
2429255817245400
Volume
8.1467239673963E+21
Space diagonal
34851512.286021
Perimeter
60364590
Area
1.7531643750214E+14
Altitude
17425756.143011
Surface area
1.7531643750214E+14
Volume
9.6010062696682E+20
Height
9485380.2072324