20147721 is an odd 8-digits composite number following 20147720
and preceding 20147722 . In scientific notation, it is written as 2.0147721 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 11450880 positive integers (up to 20147721) that are relatively prime to 20147721.
20147721 has 32 divisors, whose sum is 31190400
The reverse of 20147721 is 12774102
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred forty-seven thousand seven hundred twenty-one
Scientific notation
2.0147721 × 10^7
Engineering notation
2.0147721 × 10^6
Prime Factorization
3 × 29 × 11 × 37 × 569
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20147721
Product of the distinct prime numbers
The prime factorization of 20147721 is 3 × 29 × 11 × 37 × 569.
Since it has a total of 5 prime factors.
4 , 4 , 22 , 13 , 281 , 384 , 3644 , 3192 , 47162 , 89394 , 38265 , 671611 , 9682632 , 3053505 , 45713034 , 63870997 , 550197922 , 998427730 , 4144199881 , 6224527289
n×2
40295442
n×3
60443163
n×4
80590884
n×5
100738605
n÷2
10073860.5
n÷3
6715907
n÷3
5036930.25
n÷5
4029544.2
n2
405930661493841
n3
8.1785777131234E+21
n4
1.6477970194083E+29
n5
3.3199354611669E+36
2 √n
4488.621280527
3 √n
272.10841716782
4 √n
66.997173675663
5 √n
28.896496160431
1 , 3 , 11 , 29 , 33 , 37 , 87 , 111 , 319 , 407 , 569 , 957 , 1073 , 1221 , 1707 , 3219 , 6259 , 11803 , 16501 , 18777 , 21053 , 35409 , 49503 , 63159 , 181511 , 231583 , 544533 , 610537 , 694749 , 1831611 , 6715907 , 20147721
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20147720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20147721 can be divided by 32 positive divisors.
The sum of these divisors (counting 20147721) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100110110111000001001
3
Ternary
1101220121110220
4
Quaternary
1030312320021
5
Quinary
20124211341
6
Senary
1555500253
8
Octal
114667011
10
Decimal
20147721
12
Duodecimal
68b7689
16
Hexadecimal
1336e09
20
Vigesimal
65i961
36
Base36
bzu2x
md5
2661054b0880e84c6984143235d3fed4
sha1
9d8f49f5261323f866f99cef4efe0438c1b6e767
sha256
92d844785277050dbda6d1e02fe656b6a61c33d85f1626f4a697b4d3d0208114
sha512
e6746ac37175cfc6c77a72534bb8ec29bcb9bf57e829a0a2d45ab01cc7b40cc3e983af554925b76197b32478d7d527c7ce9780a664f67d1292d5519209dc9f57
ripemd-160
89187eeb341d31a24f9ea1de640b8212c7740f67
Diameter
40295442
Circumference
126591864.56035
Area
1.2752687840159E+15
Volume
3.4258346213815E+22
Surface area
5.1010751360636E+15
Circumference
126591864.56035
Perimeter
80590884
Area
405930661493841
Diagonal
28493180.289109
Surface area
2435583968963046
Volume
8.1785777131234E+21
Space diagonal
34896876.428722
Perimeter
60443163
Area
1.7577313251434E+14
Altitude
17448438.214361
Surface area
1.7577313251434E+14
Volume
9.6385462690178E+20
Height
9497726.7630364