20121256 is an even 8-digits composite number following 20121255
and preceding 20121257 . In scientific notation, it is written as 2.0121256 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 16 positive divisors.
There are 9962544 positive integers (up to 20121256) that are relatively prime to 20121256.
20121256 has 16 divisors, whose sum is 38095200
The reverse of 20121256 is 65212102
Previous prime number is 103
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-one thousand two hundred fifty-six
Scientific notation
2.0121256 × 10^7
Engineering notation
2.0121256 × 10^6
Prime Factorization
2 × 2 × 2 × 103 × 24419
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5030314
Product of the distinct prime numbers
The prime factorization of 20121256 is 2 × 2 × 2 × 103 × 24419.
Since it has a total of 5 prime factors.
6 , 3 , 88 , 59 , 31 , 580 , 1414 , 4940 , 83241 , 47070 , 222095 , 534796 , 6605657 , 9730711 , 79067184 , 34449228 , 857447475 , 381905668 , 6142344801 , 4735630734
n×2
40242512
n×3
60363768
n×4
80485024
n×5
100606280
n÷2
10060628
n÷3
6707085.3333333
n÷3
5030314
n÷5
4024251.2
n2
404864943017536
n3
8.1463911638813E+21
n4
1.6391562208459E+29
n5
3.2981881943633E+36
2 √n
4485.6723018963
3 √n
271.989222468
4 √n
66.975161828071
5 √n
28.888900781281
1 , 2 , 4 , 8 , 103 , 206 , 412 , 824 , 24419 , 48838 , 97676 , 195352 , 2515157 , 5030314 , 10060628 , 20121256
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121255
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121256 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121256) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011010101000
3
Ternary
1101212021011201
4
Quaternary
1030300122220
5
Quinary
20122340011
6
Senary
1555133544
8
Octal
114603250
10
Decimal
20121256
12
Duodecimal
68a42b4
16
Hexadecimal
13306a8
20
Vigesimal
65f32g
36
Base36
bz9ns
md5
03fb9422ae90cedd104f1254f85557e2
sha1
9e7cc7b2cb77db075d07769932e6bc7f6ce67c00
sha256
3a0cff9fd7c3e8a2be7bc3eddd72ffa743133ca183b2af6fad4b2022c0986be0
sha512
89862cb98ecc81721fdef003326bdf756eeee8ff7abb90b0a1db8237cfd34b8d94f465d9fb0159cc2de0123a2031b7eb725f24db7c00071ee82b0031118159ce
ripemd-160
0f518cd80f567ab5498ddb9c5b318a2b122c7aca
Diameter
40242512
Circumference
126425580.0612
Area
1.2719207306799E+15
Volume
3.4123523511624E+22
Surface area
5.0876829227198E+15
Circumference
126425580.0612
Perimeter
80485024
Area
404864943017536
Diagonal
28455753.127181
Surface area
2429189658105216
Volume
8.1463911638813E+21
Space diagonal
34851037.7041
Perimeter
60363768
Area
1.7531166287746E+14
Altitude
17425518.85205
Surface area
1.7531166287746E+14
Volume
9.6006140569643E+20
Height
9485251.0423937