20121286 is an even 8-digits composite number following 20121285
and preceding 20121287 . In scientific notation, it is written as 2.0121286 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 10024560 positive integers (up to 20121286) that are relatively prime to 20121286.
20121286 has 8 divisors, whose sum is 30290184
The reverse of 20121286 is 68212102
Previous prime number is 281
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred twenty-one thousand two hundred eighty-six
Scientific notation
2.0121286 × 10^7
Engineering notation
2.0121286 × 10^6
Prime Factorization
2 × 281 × 35803
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121286
Product of the distinct prime numbers
The prime factorization of 20121286 is 2 × 281 × 35803.
Since it has a total of 3 prime factors.
10 , 1 , 72 , 62 , 767 , 99 , 3539 , 4702 , 67453 , 93562 , 976015 , 885665 , 5184306 , 4472497 , 86739800 , 75425764 , 411459690 , 887874195 , 2086975465 , 5717813355
n×2
40242572
n×3
60363858
n×4
80485144
n×5
100606430
n÷2
10060643
n÷3
6707095.3333333
n÷3
5030321.5
n÷5
4024257.2
n2
404866150293796
n3
8.1464276017805E+21
n4
1.6391659965372E+29
n5
3.29821278178E+36
2 √n
4485.6756458754
3 √n
271.98935764301
4 √n
66.975186792389
5 √n
28.888909395718
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
-20121285
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 20121286 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121286) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011011000110
3
Ternary
1101212021012211
4
Quaternary
1030300123012
5
Quinary
20122340121
6
Senary
1555134034
8
Octal
114603306
10
Decimal
20121286
12
Duodecimal
68a431a
16
Hexadecimal
13306c6
20
Vigesimal
65f346
36
Base36
bz9om
md5
ef3a0b95c6f8db66d17bca88dffe7d18
sha1
50f8588bd1d5d67873399eab5b45f2e774eaac91
sha256
92cb407c9301f068ee333a91b72b3f3686ba4e44363f4f42e66f69c374a6ed3a
sha512
0ebae2c208f57b82499cc84cbdf7ec0ac10c4cd7f83815d13d791a5e891ccd4a4d0923956b9607994930a35704fb000b3d20628ee57bef1690a14fe624b7c685
ripemd-160
f1100ac8fa5885ebce724cc3a7b1e2a645e7fe31
Diameter
40242572
Circumference
126425768.55676
Area
1.2719245234502E+15
Volume
3.4123676142339E+22
Surface area
5.0876980938007E+15
Circumference
126425768.55676
Perimeter
80485144
Area
404866150293796
Diagonal
28455795.553588
Surface area
2429196901762776
Volume
8.1464276017805E+21
Space diagonal
34851089.665624
Perimeter
60363858
Area
1.7531218564342E+14
Altitude
17425544.832812
Surface area
1.7531218564342E+14
Volume
9.6006569994404E+20
Height
9485265.1845293