20121801 is an odd 8-digits composite number following 20121800
and preceding 20121802 . In scientific notation, it is written as 2.0121801 × 10^7.
The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors.
There are 11498088 positive integers (up to 20121801) that are relatively prime to 20121801.
20121801 has 12 divisors, whose sum is 31209552
The reverse of 20121801 is 10812102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred twenty-one thousand eight hundred one
Scientific notation
2.0121801 × 10^7
Engineering notation
2.0121801 × 10^6
Prime Factorization
3 × 7 × 7 × 136883
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2874543
Product of the distinct prime numbers
The prime factorization of 20121801 is 3 × 7 × 7 × 136883.
Since it has a total of 4 prime factors.
8 , 7 , 30 , 20 , 905 , 45 , 8020 , 751 , 22081 , 62619 , 145530 , 506922 , 4855426 , 2996770 , 35087861 , 7224800 , 334840371 , 708962262 , 6825565397 , 7853854099
n×2
40243602
n×3
60365403
n×4
80487204
n×5
100609005
n÷2
10060900.5
n÷3
6707267
n÷3
5030450.25
n÷5
4024360.2
n2
404886875483601
n3
8.1470531359928E+21
n4
1.6393338193887E+29
n5
3.298634888631E+36
2 √n
4485.7330504612
3 √n
271.9916781263
4 √n
66.975615342162
5 √n
28.889057275293
1 , 3 , 7 , 21 , 49 , 147 , 136883 , 410649 , 958181 , 2874543 , 6707267 , 20121801
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121800
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121801 can be divided by 12 positive divisors.
The sum of these divisors (counting 20121801) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110000100011001001
3
Ternary
1101212021220220
4
Quaternary
1030300203021
5
Quinary
20122344201
6
Senary
1555140253
8
Octal
114604311
10
Decimal
20121801
12
Duodecimal
68a4689
16
Hexadecimal
13308c9
20
Vigesimal
65f4a1
36
Base36
bza2x
md5
a902446e47a30cc6d3623005df55ffa9
sha1
345047db4f134bc464b5a752b916885ed8d546d3
sha256
2c18f6782d0eb2051ccc4d02defedccab3544a4f033b16b3eb060d8497b17541
sha512
adabc3546c8c1b5b2929dc4bf8a2b408d1df6672164b6f341e7de081d38c623f3951ed8a4b12babec8874352ed5c7334bcfc599673f78917d4c48790531dbbb4
ripemd-160
414b9539d3e4583405ce1b178e547230101d149f
Diameter
40243602
Circumference
126429004.39719
Area
1.2719896335542E+15
Volume
3.4126296373921E+22
Surface area
5.0879585342168E+15
Circumference
126429004.39719
Perimeter
80487204
Area
404886875483601
Diagonal
28456523.873573
Surface area
2429321252901606
Volume
8.1470531359928E+21
Space diagonal
34851981.67179
Perimeter
60365403
Area
1.7532115991385E+14
Altitude
17425990.835895
Surface area
1.7532115991385E+14
Volume
9.6013941985794E+20
Height
9485507.9578575