20156815 is an odd 8-digits composite number following 20156814
and preceding 20156816 . In scientific notation, it is written as 2.0156815 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 12317184 positive integers (up to 20156815) that are relatively prime to 20156815.
20156815 has 16 divisors, whose sum is 24662016
The reverse of 20156815 is 51865102
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifty-six thousand eight hundred fifteen
Scientific notation
2.0156815 × 10^7
Engineering notation
2.0156815 × 10^6
Prime Factorization
95 × 7 × 17 × 1783
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20156815
Product of the distinct prime numbers
The prime factorization of 20156815 is 95 × 7 × 17 × 1783.
Since it has a total of 4 prime factors.
6 , 5 , 77 , 2 , 263 , 288 , 9897 , 964 , 29322 , 48162 , 52829 , 714010 , 8649697 , 904979 , 80881795 , 86096759 , 2644245 , 854167501 , 5181095409 , 1608577640
n×2
40313630
n×3
60470445
n×4
80627260
n×5
100784075
n÷2
10078407.5
n÷3
6718938.3333333
n÷3
5039203.75
n÷5
4031363
n2
406297190944225
n3
8.1896573128824E+21
n4
1.6507740736917E+29
n5
3.32743476102E+36
2 √n
4489.6341721793
3 √n
272.14935118924
4 √n
67.004732461068
5 √n
28.899104269845
1 , 7 , 17 , 95 , 119 , 665 , 1615 , 1783 , 11305 , 12481 , 30311 , 169385 , 212177 , 1185695 , 2879545 , 20156815
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20156814
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20156815 can be divided by 16 positive divisors.
The sum of these divisors (counting 20156815) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111001000110001111
3
Ternary
1101221001221201
4
Quaternary
1030321012033
5
Quinary
20130004230
6
Senary
2000010331
8
Octal
114710617
10
Decimal
20156815
12
Duodecimal
69009a7
16
Hexadecimal
133918f
20
Vigesimal
65jc0f
36
Base36
c013j
md5
0da81e9110acd544d16a230f1d7eab63
sha1
4207387095607c3e95e242b62d749e0ec285411a
sha256
c7a426a3e2b4565960598e5b33b9a0c6fedd348d8edf20d482404f700e620cda
sha512
ea85bacc1e635d7b77abd90fa142b818f7bf834f8d6fbfcd1bbe0532cafcd10b3d437000197b046273df253137d1cd653af9db71696b50cef3f5fd20a4b5d2e3
ripemd-160
e52b8f7455d994f540c77281519075e6c554eed3
Diameter
40313630
Circumference
126649003.84754
Area
1.2764202702445E+15
Volume
3.4304756332759E+22
Surface area
5.1056810809782E+15
Circumference
126649003.84754
Perimeter
80627260
Area
406297190944225
Diagonal
28506041.147245
Surface area
2437783145665350
Volume
8.1896573128824E+21
Space diagonal
34912627.698766
Perimeter
60470445
Area
1.7593184442198E+14
Altitude
17456313.849383
Surface area
1.7593184442198E+14
Volume
9.6516037025553E+20
Height
9502013.7157485