20121886 is an even 8-digits composite number following 20121885
and preceding 20121887 . In scientific notation, it is written as 2.0121886 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10060942 positive integers (up to 20121886) that are relatively prime to 20121886.
20121886 has 4 divisors, whose sum is 30182832
The reverse of 20121886 is 68812102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-one thousand eight hundred eighty-six
Scientific notation
2.0121886 × 10^7
Engineering notation
2.0121886 × 10^6
Prime Factorization
2 × 10060943
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121886
Product of the distinct prime numbers
The prime factorization of 20121886 is 2 × 10060943.
Since it has a total of 2 prime factors.
8 , 3 , 67 , 67 , 209 , 647 , 1337 , 2141 , 31181 , 18393 , 912967 , 398440 , 4096884 , 5024929 , 64753830 , 36452846 , 962139642 , 925962093 , 7743520177 , 6398462618
n×2
40243772
n×3
60365658
n×4
80487544
n×5
100609430
n÷2
10060943
n÷3
6707295.3333333
n÷3
5030471.5
n÷5
4024377.2
n2
404890296196996
n3
8.1471563825822E+21
n4
1.6393615195449E+29
n5
3.2987045609069E+36
2 √n
4485.7425249339
3 √n
271.99206111489
4 √n
66.975686072887
5 √n
28.88908168231
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
-20121885
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 20121886 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121886) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000100100011110
3
Ternary
1101212022001001
4
Quaternary
1030300210132
5
Quinary
20122400021
6
Senary
1555140514
8
Octal
114604436
10
Decimal
20121886
12
Duodecimal
68a473a
16
Hexadecimal
133091e
20
Vigesimal
65f4e6
36
Base36
bza5a
md5
025c767bcccf87c3976a2d8f3208a688
sha1
3fa67a5024c7cd4526e19222812692050893e37b
sha256
87db16090f5f5b861c6cf7e35bdc41c5804d2ba4b43869c8cbb1239d09aca4b0
sha512
f146dad9ac9c34471c1498243efdfc837a15e3380642beb772f5b2d3ba49cef107fdb91793a43c0f1a51b5acddd973ef4a1c8a4c306d433d50d6c0e0992ee0a2
ripemd-160
58b7e2355569fabc1086e8dc1aa558401e45578f
Diameter
40243772
Circumference
126429538.46794
Area
1.2720003800423E+15
Volume
3.4126728852223E+22
Surface area
5.0880015201691E+15
Circumference
126429538.46794
Perimeter
80487544
Area
404890296196996
Diagonal
28456644.081725
Surface area
2429341777181976
Volume
8.1471563825822E+21
Space diagonal
34852128.896109
Perimeter
60365658
Area
1.753226411262E+14
Altitude
17426064.448054
Surface area
1.753226411262E+14
Volume
9.6015158758519E+20
Height
9485548.0272418