20697645 is an odd 8-digits composite number following 20697644
and preceding 20697646 . In scientific notation, it is written as 2.0697645 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 10940160 positive integers (up to 20697645) that are relatively prime to 20697645.
20697645 has 8 divisors, whose sum is 22274688
The reverse of 20697645 is 54679602
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred ninety-seven thousand six hundred forty-five
Scientific notation
2.0697645 × 10^7
Engineering notation
2.0697645 × 10^6
Prime Factorization
15 × 113 × 12211
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20697645
Product of the distinct prime numbers
The prime factorization of 20697645 is 15 × 113 × 12211.
Since it has a total of 3 prime factors.
3 , 9 , 77 , 7 , 102 , 38 , 6710 , 4098 , 21101 , 7231 , 244519 , 816279 , 8967525 , 9024546 , 92192186 , 83400040 , 253415169 , 266265922 , 9333294353 , 8542582665
n×2
41395290
n×3
62092935
n×4
82790580
n×5
103488225
n÷2
10348822.5
n÷3
6899215
n÷3
5174411.25
n÷5
4139529
n2
428392508546025
n3
8.8667160625451E+21
n4
1.8352014137836E+29
n5
3.798434736599E+36
2 √n
4549.4664522337
3 √n
274.56192510696
4 √n
67.44973278104
5 √n
29.052545281687
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
-20697644
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 20697645 can be divided by 8 positive divisors.
The sum of these divisors (counting 20697645) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111101001000101101
3
Ternary
1102221112211110
4
Quaternary
1032331020231
5
Quinary
20244311040
6
Senary
2015342233
8
Octal
116751055
10
Decimal
20697645
12
Duodecimal
6b21979
16
Hexadecimal
13bd22d
20
Vigesimal
697425
36
Base36
cbmel
md5
a673fa6d98234aed18858be6844698d2
sha1
feb93830dce3a87db6f75ff322fed43256518058
sha256
b04f772a6086077df7b108db3b217edaa9efe42c7826a5a5d0733298202fec65
sha512
c44bbb560efd2429baea49757c30b4fdbb546aec3e9d0a607ae6ce26068806d5e2a67e9ac0cc466f1f6f0b070c5db8637fcaead27834f8a0b85fb971b5448d60
ripemd-160
ab7f487fc97c1639d92051599b512c340a6f5e9e
Diameter
41395290
Circumference
130047138.95722
Area
1.3458347577011E+15
Volume
3.7140813391411E+22
Surface area
5.3833390308044E+15
Circumference
130047138.95722
Perimeter
82790580
Area
428392508546025
Diagonal
29270890.268184
Surface area
2570355051276150
Volume
8.8667160625451E+21
Space diagonal
35849372.737024
Perimeter
62092935
Area
1.854993975959E+14
Altitude
17924686.368512
Surface area
1.854993975959E+14
Volume
1.0449525091136E+21
Height
9756963.4227279