20888978 is an even 8-digits composite number following 20888977
and preceding 20888979 . In scientific notation, it is written as 2.0888978 × 10^7.
The sum of its digits is 50. It has a total of 5 prime factors and 32 positive divisors.
There are 9072000 positive integers (up to 20888978) that are relatively prime to 20888978.
20888978 has 32 divisors, whose sum is 35735040
The reverse of 20888978 is 87988802
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty million eight hundred eighty-eight thousand nine hundred seventy-eight
Scientific notation
2.0888978 × 10^7
Engineering notation
2.0888978 × 10^6
Prime Factorization
2 × 11 × 109 × 31 × 281
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20888978
Product of the distinct prime numbers
The prime factorization of 20888978 is 2 × 11 × 109 × 31 × 281.
Since it has a total of 5 prime factors.
5 , 2 , 33 , 71 , 394 , 520 , 3546 , 5455 , 9988 , 45373 , 557695 , 265801 , 3355931 , 3541020 , 54534206 , 29885842 , 211554229 , 732258167 , 7062342189 , 3376483014
n×2
41777956
n×3
62666934
n×4
83555912
n×5
104444890
n÷2
10444489
n÷3
6962992.6666667
n÷3
5222244.5
n÷5
4177795.6
n2
436349401884484
n3
9.1148930562781E+21
n4
1.9040080052495E+29
n5
3.977278133348E+36
2 √n
4570.4461489006
3 √n
275.40536581025
4 √n
67.605074875342
5 √n
29.106061221338
1 , 2 , 11 , 22 , 31 , 62 , 109 , 218 , 281 , 341 , 562 , 682 , 1199 , 2398 , 3091 , 3379 , 6182 , 6758 , 8711 , 17422 , 30629 , 37169 , 61258 , 74338 , 95821 , 191642 , 336919 , 673838 , 949499 , 1898998 , 10444489 , 20888978
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
-20888977
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 20888978 can be divided by 32 positive divisors.
The sum of these divisors (counting 20888978) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001111101011110110010010
3
Ternary
1110022021021212
4
Quaternary
1033223312102
5
Quinary
20321421403
6
Senary
2023420122
8
Octal
117536622
10
Decimal
20888978
12
Duodecimal
6bb4642
16
Hexadecimal
13ebd92
20
Vigesimal
6ab28i
36
Base36
cfq1e
md5
d41d28901a6566703abb738d96a14113
sha1
eefcd245214053c8d3b526cd1caa8a8148bfdc5d
sha256
1e2ba1e0a0f47acbecdb1b8a9b767bc1c4e2e49d47555ffc43d2ce542ca06837
sha512
e5972080eaf3ddbb913d0fc49cbb8aaa5108ca59fa9f8d356792265fc9cce76b76cfb90d99bf7361bd71fac69f1ab244c3f115aca8b8ac2de0dc4a42bfc413c8
ripemd-160
8fc86c16426a673d6f90abe9fc7b0a195f516071
Diameter
41777956
Circumference
131249319.6516
Area
1.3708320753586E+15
Volume
3.8180374751813E+22
Surface area
5.4833283014344E+15
Circumference
131249319.6516
Perimeter
83555912
Area
436349401884484
Diagonal
29541475.991713
Surface area
2618096411306904
Volume
9.1148930562781E+21
Space diagonal
36180771.214189
Perimeter
62666934
Area
1.8894483347905E+14
Altitude
18090385.607094
Surface area
1.8894483347905E+14
Volume
1.0742004483141E+21
Height
9847158.6639044