20512397 is an odd 8-digits composite number following 20512396
and preceding 20512398 . In scientific notation, it is written as 2.0512397 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20223420 positive integers (up to 20512397) that are relatively prime to 20512397.
20512397 has 4 divisors, whose sum is 20801376
The reverse of 20512397 is 79321502
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million five hundred twelve thousand three hundred ninety-seven
Scientific notation
2.0512397 × 10^7
Engineering notation
2.0512397 × 10^6
Prime Factorization
71 × 288907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20512397
Product of the distinct prime numbers
The prime factorization of 20512397 is 71 × 288907.
Since it has a total of 2 prime factors.
4 , 8 , 39 , 82 , 79 , 606 , 7628 , 667 , 52134 , 75438 , 456665 , 7221 , 2390041 , 7671671 , 57155045 , 66385901 , 909280967 , 11376564 , 7889776693 , 5715508496
n×2
41024794
n×3
61537191
n×4
82049588
n×5
102561985
n÷2
10256198.5
n÷3
6837465.6666667
n÷3
5128099.25
n÷5
4102479.4
n2
420758430685609
n3
8.6307639713202E+21
n4
1.7703765699302E+29
n5
3.6314667041906E+36
2 √n
4529.0613817876
3 √n
273.74034132571
4 √n
67.298301477731
5 √n
29.000352892168
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
-20512396
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 20512397 can be divided by 4 positive divisors.
The sum of these divisors (counting 20512397) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110001111111010001101
3
Ternary
1102121010201102
4
Quaternary
1032033322031
5
Quinary
20222344042
6
Senary
2011352445
8
Octal
116177215
10
Decimal
20512397
12
Duodecimal
6a52725
16
Hexadecimal
138fe8d
20
Vigesimal
6840jh
36
Base36
c7ngt
md5
5fce0a0855ec9930faa2e6850a280e02
sha1
141419d403fd9f404fa547a19ce1af6b58e11113
sha256
3f6305687c932be81e296c6143348182605c68339e9a4e01aa41e633beadfcec
sha512
7e3cf359f31e0586f4fcc19b70859b0f0c0599917d4c04215078f901efc709d8724bd96687361227f8114ca4b3f2b06cf761b54cb28c9e733adbe4ae4aaefcea
ripemd-160
95be79b8d296ae14acec267ab392ce249af8228d
Diameter
41024794
Circumference
128883191.44543
Area
1.3218515947779E+15
Volume
3.6152459582889E+22
Surface area
5.2874063791115E+15
Circumference
128883191.44543
Perimeter
82049588
Area
420758430685609
Diagonal
29008910.034181
Surface area
2524550584113654
Volume
8.6307639713202E+21
Space diagonal
35528513.789023
Perimeter
61537191
Area
1.8219374491511E+14
Altitude
17764256.894512
Surface area
1.8219374491511E+14
Volume
1.0171452884902E+21
Height
9669636.6780604