20156591 is an odd 8-digits composite number following 20156590
and preceding 20156592 . In scientific notation, it is written as 2.0156591 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 15947568 positive integers (up to 20156591) that are relatively prime to 20156591.
20156591 has 12 divisors, whose sum is 25251912
The reverse of 20156591 is 19565102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-six thousand five hundred ninety-one
Scientific notation
2.0156591 × 10^7
Engineering notation
2.0156591 × 10^6
Prime Factorization
7 × 7 × 13 × 31643
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2879513
Product of the distinct prime numbers
The prime factorization of 20156591 is 7 × 7 × 13 × 31643.
Since it has a total of 4 prime factors.
7 , 8 , 87 , 79 , 297 , 490 , 7310 , 7950 , 73232 , 39176 , 510357 , 36616 , 3780798 , 5562835 , 99684625 , 64557743 , 69638427 , 725861428 , 6594379933 , 5637966780
n×2
40313182
n×3
60469773
n×4
80626364
n×5
100782955
n÷2
10078295.5
n÷3
6718863.6666667
n÷3
5039147.75
n÷5
4031318.2
n2
406288160741281
n3
8.1893842842043E+21
n4
1.6507006955853E+29
n5
3.3272498784329E+36
2 √n
4489.6092257567
3 √n
272.14834306568
4 √n
67.004546306626
5 √n
28.89904003918
1 , 7 , 13 , 49 , 91 , 637 , 31643 , 221501 , 411359 , 1550507 , 2879513 , 20156591
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20156590
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20156591 can be divided by 12 positive divisors.
The sum of these divisors (counting 20156591) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111001000010101111
3
Ternary
1101221001122102
4
Quaternary
1030321002233
5
Quinary
20130002331
6
Senary
2000005315
8
Octal
114710257
10
Decimal
20156591
12
Duodecimal
690083b
16
Hexadecimal
13390af
20
Vigesimal
65jb9b
36
Base36
c00xb
md5
50b854b7fdb7b455cacedce26e7e8f85
sha1
1e926431bd5612b074ed3d15d32c9613e337ce62
sha256
9814501bc35b8c7b466691a715252c9c88f8e0b5856fe7c208134da049f8f356
sha512
c12128b91ed24e293866fe5386ee56cead7d5265f8dd9e9023b9f06719ab9be06d9a9d683fce8866c0a33fb073250d0024315d8489c6320d25774412e8f3ce7b
ripemd-160
34f0ee9fadd995d780ed66217d96d34b45e31bf4
Diameter
40313182
Circumference
126647596.41403
Area
1.2763919010253E+15
Volume
3.4303612672906E+22
Surface area
5.1055676041013E+15
Circumference
126647596.41403
Perimeter
80626364
Area
406288160741281
Diagonal
28505724.363407
Surface area
2437728964447686
Volume
8.1893842842043E+21
Space diagonal
34912239.719386
Perimeter
60469773
Area
1.759279342294E+14
Altitude
17456119.859693
Surface area
1.759279342294E+14
Volume
9.6512819351723E+20
Height
9501908.1211358