20121005 is an odd 8-digits composite number following 20121004
and preceding 20121006 . In scientific notation, it is written as 2.0121005 × 10^7.
The sum of its digits is 11. It has a total of 3 prime factors and 8 positive divisors.
There are 16038400 positive integers (up to 20121005) that are relatively prime to 20121005.
20121005 has 8 divisors, whose sum is 24232824
The reverse of 20121005 is 50012102
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 11
Digital Root 2
Name
twenty million one hundred twenty-one thousand five
Scientific notation
2.0121005 × 10^7
Engineering notation
2.0121005 × 10^6
Prime Factorization
5 × 281 × 14321
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121005
Product of the distinct prime numbers
The prime factorization of 20121005 is 5 × 281 × 14321.
Since it has a total of 3 prime factors.
10 , 6 , 21 , 25 , 671 , 376 , 7002 , 6865 , 56235 , 58696 , 172434 , 163544 , 942547 , 7472817 , 21571276 , 92661461 , 865089021 , 768198363 , 4409445555 , 9986670979
n×2
40242010
n×3
60363015
n×4
80484020
n×5
100605025
n÷2
10060502.5
n÷3
6707001.6666667
n÷3
5030251.25
n÷5
4024201
n2
404854842210025
n3
8.1460863043821E+21
n4
1.639074432609E+29
n5
3.2979824853899E+36
2 √n
4485.6443238402
3 √n
271.98809149853
4 √n
66.97495295885
5 √n
28.888828706752
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
-20121004
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 20121005 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121005) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010110101101
3
Ternary
1101212020211102
4
Quaternary
1030300112231
5
Quinary
20122333010
6
Senary
1555132445
8
Octal
114602655
10
Decimal
20121005
12
Duodecimal
68a4125
16
Hexadecimal
13305ad
20
Vigesimal
65f2a5
36
Base36
bz9gt
md5
b45a9aa3731be3a1f8c24b2c9275d8cf
sha1
ecf3d90c05d956f0e6d85432eaf3d874d57b94ef
sha256
dc8b69b2b863372da00ac2c4db6efb4aae6d145bc878d80c6cfa8e7a179947d1
sha512
c14fe91a30c6871304c4d41d26a47aa29eefd21b63178860943d902aac77b9738b2ad575d8027d3050c587b2661d7c4f1e68a67829c501d4204a3e517c6ef32d
ripemd-160
4023b86b1cbed8a1218714d3328c58ccaa034e47
Diameter
40242010
Circumference
126424002.98169
Area
1.2718889980573E+15
Volume
3.412224651914E+22
Surface area
5.0875559922291E+15
Circumference
126424002.98169
Perimeter
80484020
Area
404854842210025
Diagonal
28455398.159577
Surface area
2429129053260150
Volume
8.1460863043821E+21
Space diagonal
34850602.959347
Perimeter
60363015
Area
1.7530728909951E+14
Altitude
17425301.479674
Surface area
1.7530728909951E+14
Volume
9.6002547765991E+20
Height
9485132.719859