20121507 is an odd 8-digits composite number following 20121506
and preceding 20121508 . In scientific notation, it is written as 2.0121507 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 11276496 positive integers (up to 20121507) that are relatively prime to 20121507.
20121507 has 24 divisors, whose sum is 24744384
The reverse of 20121507 is 70512102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred twenty-one thousand five hundred seven
Scientific notation
2.0121507 × 10^7
Engineering notation
2.0121507 × 10^6
Prime Factorization
7 × 27 × 7 × 67 × 227
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2874501
Product of the distinct prime numbers
The prime factorization of 20121507 is 7 × 27 × 7 × 67 × 227.
Since it has a total of 5 prime factors.
3 , 8 , 12 , 87 , 391 , 665 , 6248 , 8623 , 92971 , 59477 , 107905 , 284487 , 2922457 , 1588038 , 21689364 , 76949825 , 96565005 , 136012081 , 2549386720 , 57129000
n×2
40243014
n×3
60364521
n×4
80486028
n×5
100607535
n÷2
10060753.5
n÷3
6707169
n÷3
5030376.75
n÷5
4024301.4
n2
404875043951049
n3
8.1466960309863E+21
n4
1.6392380121436E+29
n5
3.2983939136014E+36
2 √n
4485.700279778
3 √n
271.99035342807
4 √n
66.975370695338
5 √n
28.888972855091
1 , 7 , 27 , 49 , 67 , 189 , 227 , 469 , 1323 , 1589 , 1809 , 3283 , 6129 , 11123 , 12663 , 15209 , 42903 , 88641 , 106463 , 300321 , 410643 , 745241 , 2874501 , 20121507
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121506
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121507 can be divided by 24 positive divisors.
The sum of these divisors (counting 20121507) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100110000011110100011
3
Ternary
1101212021112000
4
Quaternary
1030300132203
5
Quinary
20122342012
6
Senary
1555135043
8
Octal
114603643
10
Decimal
20121507
12
Duodecimal
68a4483
16
Hexadecimal
13307a3
20
Vigesimal
65f3f7
36
Base36
bz9ur
md5
32efb73bac8457056bc9b7ddf3026ad1
sha1
76f26b40295e655483fcc1d45ab0b27a2edf270d
sha256
8aa7cfe02df4cb7436da35e9e5b973eeaa3f67554491cd42c503576087899252
sha512
1882d55d6096587131c30301a3bcefb6bd33b8603ee8faded817530bee38d608ca521d8804d02dd7e30893c96e072661e0fda1211cd80d10cb9239cf224ff75e
ripemd-160
6fd7c22309627ace89fe96897aa2334d2c8b02eb
Diameter
40243014
Circumference
126427157.14071
Area
1.2719524636985E+15
Volume
3.4124800535968E+22
Surface area
5.0878098547938E+15
Circumference
126427157.14071
Perimeter
80486028
Area
404875043951049
Diagonal
28456108.094785
Surface area
2429250263706294
Volume
8.1466960309863E+21
Space diagonal
34851472.448853
Perimeter
60364521
Area
1.7531603670997E+14
Altitude
17425736.224426
Surface area
1.7531603670997E+14
Volume
9.6009733462933E+20
Height
9485369.3649284