20121928 is an even 8-digits composite number following 20121927
and preceding 20121929 . In scientific notation, it is written as 2.0121928 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 8 positive divisors.
There are 10060960 positive integers (up to 20121928) that are relatively prime to 20121928.
20121928 has 8 divisors, whose sum is 37728630
The reverse of 20121928 is 82912102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-one thousand nine hundred twenty-eight
Scientific notation
2.0121928 × 10^7
Engineering notation
2.0121928 × 10^6
Prime Factorization
2 × 2 × 2 × 2515241
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5030482
Product of the distinct prime numbers
The prime factorization of 20121928 is 2 × 2 × 2 × 2515241.
Since it has a total of 4 prime factors.
3 , 7 , 38 , 37 , 570 , 330 , 6051 , 6243 , 79286 , 44351 , 407435 , 658061 , 2608511 , 852178 , 375650 , 75976003 , 502063319 , 79509838 , 5090705195 , 6174161891
n×2
40243856
n×3
60365784
n×4
80487712
n×5
100609640
n÷2
10060964
n÷3
6707309.3333333
n÷3
5030482
n÷5
4024385.6
n2
404891986437184
n3
8.147207398866E+21
n4
1.6393752068105E+29
n5
3.2987389876426E+36
2 √n
4485.7472064306
3 √n
271.99225035591
4 √n
66.975721022103
5 √n
28.889093742217
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
-20121927
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 20121928 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121928) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100101001000
3
Ternary
1101212022002121
4
Quaternary
1030300211020
5
Quinary
20122400203
6
Senary
1555141024
8
Octal
114604510
10
Decimal
20121928
12
Duodecimal
68a4774
16
Hexadecimal
1330948
20
Vigesimal
65f4g8
36
Base36
bza6g
md5
833c9d3e5e3233dfee62a44e56ecf42c
sha1
9b253d86c000ff384b9206b25516a6fc3935006d
sha256
67e150ce2a80f59621b010a084e6c73660301012303edf6c9171d734252b03c4
sha512
02058ced6da6cf2274f3aae1e4c80b06e0882327f0c082b9d42748a5d951cb2abf901fd2941ad77c7704bf3cf1e34d7b43cc7869ca6b5756eb24533ebf8744e8
ripemd-160
ab8caac4bd4131ef6841caf81a9bfcb5168716ce
Diameter
40243856
Circumference
126429802.36173
Area
1.2720056900884E+15
Volume
3.4126942548733E+22
Surface area
5.0880227603537E+15
Circumference
126429802.36173
Perimeter
80487712
Area
404891986437184
Diagonal
28456703.478695
Surface area
2429351918623104
Volume
8.147207398866E+21
Space diagonal
34852201.642243
Perimeter
60365784
Area
1.7532337302167E+14
Altitude
17426100.821121
Surface area
1.7532337302167E+14
Volume
9.6015759991189E+20
Height
9485567.8262316