20121213 is an odd 8-digits composite number following 20121212
and preceding 20121214 . In scientific notation, it is written as 2.0121213 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 11497752 positive integers (up to 20121213) that are relatively prime to 20121213.
20121213 has 8 divisors, whose sum is 24090880
The reverse of 20121213 is 31212102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty million one hundred twenty-one thousand two hundred thirteen
Scientific notation
2.0121213 × 10^7
Engineering notation
2.0121213 × 10^6
Prime Factorization
21 × 7 × 136879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121213
Product of the distinct prime numbers
The prime factorization of 20121213 is 21 × 7 × 136879.
Since it has a total of 3 prime factors.
6 , 2 , 68 , 39 , 105 , 879 , 4297 , 4470 , 98264 , 68935 , 240457 , 931428 , 7126764 , 7556100 , 36353096 , 57203744 , 111309547 , 765641379 , 1632361227 , 8779366341
n×2
40242426
n×3
60363639
n×4
80484852
n×5
100606065
n÷2
10060606.5
n÷3
6707071
n÷3
5030303.25
n÷5
4024242.6
n2
404863212591369
n3
8.1463389364152E+21
n4
1.639142209098E+29
n5
3.2981529526552E+36
2 √n
4485.6675088553
3 √n
271.98902871693
4 √n
66.975126045834
5 √n
28.888888433903
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
-20121212
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 20121213 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121213) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011001111101
3
Ternary
1101212021010010
4
Quaternary
1030300121331
5
Quinary
20122334323
6
Senary
1555133433
8
Octal
114603175
10
Decimal
20121213
12
Duodecimal
68a4279
16
Hexadecimal
133067d
20
Vigesimal
65f30d
36
Base36
bz9ml
md5
8477be1b351de2d9a624ea67d3bc2d37
sha1
128c6874990ee665009050d07667e2bbb37e9f1b
sha256
29b973a332b0800e9cc166a2ca0c0277c5fa6b2d1d886b18aaca1afbb937bb07
sha512
54f71133da11028216d198e8def763f398dc1b322fa9b012aefdcdb1139841ef46c8f80e96d6aef18fb924939314d1b1f431443766a97df24c4e0a90c474c3da
ripemd-160
259413333d8b491710cc3aefb8c1e9cc1dbd5f49
Diameter
40242426
Circumference
126425309.88423
Area
1.2719152943858E+15
Volume
3.4123304741726E+22
Surface area
5.0876611775432E+15
Circumference
126425309.88423
Perimeter
80484852
Area
404863212591369
Diagonal
28455692.315998
Surface area
2429179275548214
Volume
8.1463389364152E+21
Space diagonal
34850963.225915
Perimeter
60363639
Area
1.7531091358095E+14
Altitude
17425481.612958
Surface area
1.7531091358095E+14
Volume
9.6005525063053E+20
Height
9485230.7719993