20121765 is an odd 8-digits composite number following 20121764
and preceding 20121766 . In scientific notation, it is written as 2.0121765 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 10555200 positive integers (up to 20121765) that are relatively prime to 20121765.
20121765 has 8 divisors, whose sum is 24279168
The reverse of 20121765 is 56712102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-one thousand seven hundred sixty-five
Scientific notation
2.0121765 × 10^7
Engineering notation
2.0121765 × 10^6
Prime Factorization
183 × 5 × 21991
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121765
Product of the distinct prime numbers
The prime factorization of 20121765 is 183 × 5 × 21991.
Since it has a total of 3 prime factors.
10 , 8 , 70 , 9 , 822 , 394 , 6411 , 5330 , 58094 , 27595 , 356003 , 383892 , 992712 , 161531 , 69764247 , 34575301 , 12958741 , 59062132 , 1180382915 , 2348751601
n×2
40243530
n×3
60365295
n×4
80487060
n×5
100608825
n÷2
10060882.5
n÷3
6707255
n÷3
5030441.25
n÷5
4024353
n2
404885426715225
n3
8.1470094082885E+21
n4
1.6393220876637E+29
n5
3.2986053807278E+36
2 √n
4485.7290377373
3 √n
271.99151591905
4 √n
66.975585385552
5 √n
28.889046938178
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
-20121764
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 20121765 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121765) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100010100101
3
Ternary
1101212021212120
4
Quaternary
1030300202211
5
Quinary
20122344030
6
Senary
1555140153
8
Octal
114604245
10
Decimal
20121765
12
Duodecimal
68a4659
16
Hexadecimal
13308a5
20
Vigesimal
65f485
36
Base36
bza1x
md5
dc9f8f3a0425f959f96540378c46933f
sha1
3d82c0b962ebb01e57495d4a424ebf692a22c0eb
sha256
442f341e4880194e7cd50471f94579169a9c77476830df5db3d1dbeb80817f81
sha512
7a1c5c2a770facd7986f336a495c4dc74c85c61004e7290a2074f121a710ca2efcb6ac2db1d969725e1f96ca983d553c9d39f2333a7af879bf8f32b3c31586ed
ripemd-160
4bac38ead3fe660ea6ecc77e94c17231e2ebed3e
Diameter
40243530
Circumference
126428778.20252
Area
1.2719850821141E+15
Volume
3.4126113207741E+22
Surface area
5.0879403284565E+15
Circumference
126428778.20252
Perimeter
80487060
Area
404885426715225
Diagonal
28456472.961884
Surface area
2429312560291350
Volume
8.1470094082885E+21
Space diagonal
34851919.317961
Perimeter
60365295
Area
1.7532053257874E+14
Altitude
17425959.658981
Surface area
1.7532053257874E+14
Volume
9.6013426649856E+20
Height
9485490.9872948