20121521 is an odd 8-digits composite number following 20121520
and preceding 20121522 . In scientific notation, it is written as 2.0121521 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 16963920 positive integers (up to 20121521) that are relatively prime to 20121521.
20121521 has 8 divisors, whose sum is 23373504
The reverse of 20121521 is 12512102
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand five hundred twenty-one
Scientific notation
2.0121521 × 10^7
Engineering notation
2.0121521 × 10^6
Prime Factorization
7 × 61 × 47123
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121521
Product of the distinct prime numbers
The prime factorization of 20121521 is 7 × 61 × 47123.
Since it has a total of 3 prime factors.
6 , 3 , 76 , 81 , 645 , 272 , 7832 , 982 , 55414 , 39452 , 243388 , 909523 , 9217214 , 3299355 , 2296545 , 9152414 , 151738948 , 244305708 , 3591413639 , 147305256
n×2
40243042
n×3
60364563
n×4
80486084
n×5
100607605
n÷2
10060760.5
n÷3
6707173.6666667
n÷3
5030380.25
n÷5
4024304.2
n2
404875607353441
n3
8.14671303575E+21
n4
1.6392425742982E+29
n5
3.2984053882835E+36
2 √n
4485.7018402921
3 √n
271.99041650923
4 √n
66.975382345248
5 √n
28.888976875123
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
-20121520
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 20121521 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011110110001
3
Ternary
1101212021112112
4
Quaternary
1030300132301
5
Quinary
20122342041
6
Senary
1555135105
8
Octal
114603661
10
Decimal
20121521
12
Duodecimal
68a4495
16
Hexadecimal
13307b1
20
Vigesimal
65f3g1
36
Base36
bz9v5
md5
594a78547225a876e75c2eff45eb5c53
sha1
2787863fe6ed58fb676c25b6d0fae2411628ec95
sha256
b6411a77ec430d547bfb15ee7b630adba3f9070814147f81fa7f2fd9c1573388
sha512
ca828087d16233cbd6cc02bc265524755e1e0df9e93f250da6db79290e905877a2bc271603cffbb6e3199d346dfc3c0ae4978372879f5588443005ec0a5020e7
ripemd-160
72cf9af0ded4c9371684d2a2bdb1fa32636d5001
Diameter
40243042
Circumference
126427245.10531
Area
1.2719542336793E+15
Volume
3.4124871765355E+22
Surface area
5.0878169347171E+15
Circumference
126427245.10531
Perimeter
80486084
Area
404875607353441
Diagonal
28456127.893775
Surface area
2429253644120646
Volume
8.14671303575E+21
Space diagonal
34851496.697564
Perimeter
60364563
Area
1.7531628067037E+14
Altitude
17425748.348782
Surface area
1.7531628067037E+14
Volume
9.6009933865995E+20
Height
9485375.9645917