20156521 is an odd 8-digits composite number following 20156520
and preceding 20156522 . In scientific notation, it is written as 2.0156521 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 15706320 positive integers (up to 20156521) that are relatively prime to 20156521.
20156521 has 8 divisors, whose sum is 25130304
The reverse of 20156521 is 12565102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred fifty-six thousand five hundred twenty-one
Scientific notation
2.0156521 × 10^7
Engineering notation
2.0156521 × 10^6
Prime Factorization
7 × 11 × 261773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20156521
Product of the distinct prime numbers
The prime factorization of 20156521 is 7 × 11 × 261773.
Since it has a total of 3 prime factors.
4 , 9 , 81 , 43 , 593 , 140 , 109 , 2358 , 40871 , 1613 , 574140 , 451780 , 9139929 , 8321362 , 40935390 , 79985771 , 105424912 , 819560232 , 2377084844 , 6205779529
n×2
40313042
n×3
60469563
n×4
80626084
n×5
100782605
n÷2
10078260.5
n÷3
6718840.3333333
n÷3
5039130.25
n÷5
4031304.2
n2
406285338823441
n3
8.1892989639868E+21
n4
1.6506777654288E+29
n5
3.3271921043098E+36
2 √n
4489.6014299713
3 √n
272.14802802553
4 √n
67.004488133044
5 √n
28.89901996698
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
-20156520
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 20156521 can be divided by 8 positive divisors.
The sum of these divisors (counting 20156521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001000001101001
3
Ternary
1101221001112211
4
Quaternary
1030321001221
5
Quinary
20130002041
6
Senary
2000005121
8
Octal
114710151
10
Decimal
20156521
12
Duodecimal
69007a1
16
Hexadecimal
1339069
20
Vigesimal
65jb61
36
Base36
c00vd
md5
9d4cccd3a2d4445d6d827a1c273631fa
sha1
d1a96dcd73d75327b6aab321f65ffdbe9744368d
sha256
29ca1f3702960663c1efc96cb99b9761644759e3846dd5a50583964695696890
sha512
55ca82f049508976d3197e487e336ffecf7741fc2bbfd3d0358c665026744baa6ae1d658f671b1a2d143a148a1f370564d63b437782f321fea1fc2c93e7d3ef8
ripemd-160
1e63ba7de0cf500ce519998428623c65899dcd81
Diameter
40313042
Circumference
126647156.59106
Area
1.276383035709E+15
Volume
3.4303255284415E+22
Surface area
5.1055321428358E+15
Circumference
126647156.59106
Perimeter
80626084
Area
406285338823441
Diagonal
28505625.368458
Surface area
2437712032940646
Volume
8.1892989639868E+21
Space diagonal
34912118.475829
Perimeter
60469563
Area
1.7592671230313E+14
Altitude
17456059.237915
Surface area
1.7592671230313E+14
Volume
9.6511813843317E+20
Height
9501875.1228194