20147749 is an odd 8-digits composite number following 20147748
and preceding 20147750 . In scientific notation, it is written as 2.0147749 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20098080 positive integers (up to 20147749) that are relatively prime to 20147749.
20147749 has 4 divisors, whose sum is 20197420
The reverse of 20147749 is 94774102
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred forty-seven thousand seven hundred forty-nine
Scientific notation
2.0147749 × 10^7
Engineering notation
2.0147749 × 10^6
Prime Factorization
409 × 49261
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20147749
Product of the distinct prime numbers
The prime factorization of 20147749 is 409 × 49261.
Since it has a total of 2 prime factors.
2 , 1 , 67 , 91 , 391 , 18 , 7720 , 6227 , 37069 , 41653 , 711127 , 511403 , 3059604 , 5085648 , 60824554 , 34539845 , 297722050 , 866280610 , 6531968284 , 962265020
n×2
40295498
n×3
60443247
n×4
80590996
n×5
100738745
n÷2
10073874.5
n÷3
6715916.3333333
n÷3
5036937.25
n÷5
4029549.8
n2
405931789767001
n3
8.1786118113463E+21
n4
1.6478061794344E+29
n5
3.3199585303893E+36
2 √n
4488.6243995238
3 √n
272.10854322065
4 √n
66.997196952736
5 √n
28.896504192123
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
-20147748
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 20147749 can be divided by 4 positive divisors.
The sum of these divisors (counting 20147749) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110111000100101
3
Ternary
1101220121111221
4
Quaternary
1030312320211
5
Quinary
20124211444
6
Senary
1555500341
8
Octal
114667045
10
Decimal
20147749
12
Duodecimal
68b76b1
16
Hexadecimal
1336e25
20
Vigesimal
65i979
36
Base36
bzu3p
md5
8b0f30d2122d3cc0785f64673ee3e901
sha1
6c12d78efdd55668e8ba477609dc87247b18ac4d
sha256
1b9e696831751522e693987b8eb539958fc283d497ec95b5d59bc871dfc9966b
sha512
7612a230806489eaf744aff6a82974dd771822b4209c5e98f1629cbe9b6f1f6e57952dbaed76b4e9ba85cdf69265491c59756739d15cf00b4f2d505f3a638896
ripemd-160
7eed44478cdc83505b4578fe354a3637bce1085c
Diameter
40295498
Circumference
126592040.48954
Area
1.2752723285906E+15
Volume
3.4258489044118E+22
Surface area
5.1010893143623E+15
Circumference
126592040.48954
Perimeter
80590996
Area
405931789767001
Diagonal
28493219.887089
Surface area
2435590738602006
Volume
8.1786118113463E+21
Space diagonal
34896924.926145
Perimeter
60443247
Area
1.7577362107095E+14
Altitude
17448462.463073
Surface area
1.7577362107095E+14
Volume
9.6385864541589E+20
Height
9497739.962363