20121251 is an odd 8-digits composite number following 20121250
and preceding 20121252 . In scientific notation, it is written as 2.0121251 × 10^7.
The sum of its digits is 14. It has a total of 3 prime factors and 8 positive divisors.
There are 18113920 positive integers (up to 20121251) that are relatively prime to 20121251.
20121251 has 8 divisors, whose sum is 22231584
The reverse of 20121251 is 15212102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5
Name
twenty million one hundred twenty-one thousand two hundred fifty-one
Scientific notation
2.0121251 × 10^7
Engineering notation
2.0121251 × 10^6
Prime Factorization
23 × 17 × 51461
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121251
Product of the distinct prime numbers
The prime factorization of 20121251 is 23 × 17 × 51461.
Since it has a total of 3 prime factors.
10 , 1 , 50 , 89 , 455 , 483 , 8384 , 1637 , 69337 , 5950 , 219164 , 278010 , 140589 , 4642633 , 14864655 , 22550535 , 987757377 , 169653316 , 5638181267 , 2753445917
n×2
40242502
n×3
60363753
n×4
80485004
n×5
100606255
n÷2
10060625.5
n÷3
6707083.6666667
n÷3
5030312.75
n÷5
4024250.2
n2
404864741805001
n3
8.1463850909086E+21
n4
1.6391545915683E+29
n5
3.2981840964748E+36
2 √n
4485.6717445662
3 √n
271.98919993882
4 √n
66.975157667349
5 √n
28.88889934554
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
-20121250
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 20121251 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121251) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011010100011
3
Ternary
1101212021011112
4
Quaternary
1030300122203
5
Quinary
20122340001
6
Senary
1555133535
8
Octal
114603243
10
Decimal
20121251
12
Duodecimal
68a42ab
16
Hexadecimal
13306a3
20
Vigesimal
65f32b
36
Base36
bz9nn
md5
a8f10d7e1264909e74dcd44b966eabdd
sha1
17c00d3535ade7737a42f2a24b50d7a762c771eb
sha256
6f41fc119fea7aa4472f80a795877533510ef213d92d42104d750f24d034fd87
sha512
3e707a9bd5cc4cbe99245bc4630936ca014a212a671cb5d3551cf9a3d1e191db1b3c00553e4ac770af59d3a38805af68cd3c7b20fc78eade84256cb57fe41d3e
ripemd-160
3de99d9a558b785edd90cef68213d66a76fc129a
Diameter
40242502
Circumference
126425548.64527
Area
1.2719200985521E+15
Volume
3.4123498073216E+22
Surface area
5.0876803942085E+15
Circumference
126425548.64527
Perimeter
80485004
Area
404864741805001
Diagonal
28455746.056113
Surface area
2429188450830006
Volume
8.1463850909086E+21
Space diagonal
34851029.043846
Perimeter
60363753
Area
1.7531157574988E+14
Altitude
17425514.521923
Surface area
1.7531157574988E+14
Volume
9.6006068998975E+20
Height
9485248.6853711