20121407 is an odd 8-digits composite number following 20121406
and preceding 20121408 . In scientific notation, it is written as 2.0121407 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 19986216 positive integers (up to 20121407) that are relatively prime to 20121407.
20121407 has 4 divisors, whose sum is 20256600
The reverse of 20121407 is 70412102
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty-one thousand four hundred seven
Scientific notation
2.0121407 × 10^7
Engineering notation
2.0121407 × 10^6
Prime Factorization
149 × 135043
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121407
Product of the distinct prime numbers
The prime factorization of 20121407 is 149 × 135043.
Since it has a total of 2 prime factors.
3 , 1 , 98 , 54 , 138 , 185 , 8832 , 5309 , 36484 , 89259 , 865655 , 301911 , 900552 , 818697 , 47503821 , 4807122 , 846550047 , 797377256 , 8905452065 , 3345520023
n×2
40242814
n×3
60364221
n×4
80485628
n×5
100607035
n÷2
10060703.5
n÷3
6707135.6666667
n÷3
5030351.75
n÷5
4024281.4
n2
404871019659649
n3
8.1465745690768E+21
n4
1.6392054256024E+29
n5
3.2983119525155E+36
2 √n
4485.6891332325
3 √n
271.9899028475
4 √n
66.975287481522
5 √n
28.888944140512
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121406
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121407 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121407) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011100111111
3
Ternary
1101212021101022
4
Quaternary
1030300130333
5
Quinary
20122341112
6
Senary
1555134355
8
Octal
114603477
10
Decimal
20121407
12
Duodecimal
68a43bb
16
Hexadecimal
133073f
20
Vigesimal
65f3a7
36
Base36
bz9rz
md5
97e2cefc5984cbff2ea966968f9b0fa1
sha1
8048af94cde002c6cae98397774734a53b6986a5
sha256
a595dad7cc21c10f202d5b3a14c8439c0392b57f0d2919316a3fd0beb56e7259
sha512
e65c104c424011972fb339116c71aa18304b9a4272090be74c70602656cdbb246044473adf6890d173f2af3a1093e7e97ad86923f58992b0d56addcefc62d6cb
ripemd-160
34dbd3339c3c73db1b4f972973a69c44b8d31352
Diameter
40242814
Circumference
126426528.82218
Area
1.2719398210142E+15
Volume
3.4124291757511E+22
Surface area
5.0877592840566E+15
Circumference
126426528.82218
Perimeter
80485628
Area
404871019659649
Diagonal
28455966.673429
Surface area
2429226117957894
Volume
8.1465745690768E+21
Space diagonal
34851299.243772
Perimeter
60364221
Area
1.7531429414068E+14
Altitude
17425649.621886
Surface area
1.7531429414068E+14
Volume
9.6008302020601E+20
Height
9485322.2244763