20687051 is an odd 8-digits composite number following 20687050
and preceding 20687052 . In scientific notation, it is written as 2.0687051 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 15417600 positive integers (up to 20687051) that are relatively prime to 20687051.
20687051 has 16 divisors, whose sum is 26915328
The reverse of 20687051 is 15078602
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million six hundred eighty-seven thousand fifty-one
Scientific notation
2.0687051 × 10^7
Engineering notation
2.0687051 × 10^6
Prime Factorization
7 × 11 × 23 × 11681
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20687051
Product of the distinct prime numbers
The prime factorization of 20687051 is 7 × 11 × 23 × 11681.
Since it has a total of 4 prime factors.
10 , 10 , 91 , 39 , 480 , 900 , 5780 , 4767 , 61570 , 65962 , 335469 , 321000 , 7026566 , 3279479 , 16892211 , 52952636 , 918395834 , 749147831 , 6359424245 , 3607665493
n×2
41374102
n×3
62061153
n×4
82748204
n×5
103435255
n÷2
10343525.5
n÷3
6895683.6666667
n÷3
5171762.75
n÷5
4137410.2
n2
427954079076601
n3
8.8531078595157E+21
n4
1.831446937983E+29
n5
3.7887236209849E+36
2 √n
4548.3019908533
3 √n
274.51507266802
4 √n
67.441100160461
5 √n
29.049570588682
1 , 7 , 11 , 23 , 77 , 161 , 253 , 1771 , 11681 , 81767 , 128491 , 268663 , 899437 , 1880641 , 2955293 , 20687051
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
-20687050
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 20687051 can be divided by 16 positive divisors.
The sum of these divisors (counting 20687051) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010100011001011
3
Ternary
1102221000022002
4
Quaternary
1032322203023
5
Quinary
20243441201
6
Senary
2015221215
8
Octal
116724313
10
Decimal
20687051
12
Duodecimal
6b1780b
16
Hexadecimal
13ba8cb
20
Vigesimal
695hcb
36
Base36
cbe8b
md5
e5beb04f14d2dfba8b3addd2c535ac1b
sha1
2536df5b9427345c4704efcff74f80cfda9c58a2
sha256
29851a27675f614e2c85a3b531dc6c6abb155413cd63c58506525384a046d768
sha512
84e06c27c371a4c1286c3368769d2a64aa902f38fa9788982cc820b0acdfe53f20685b8cb4bd3d7246791df912d8a234891cab1ebe170b5fcedd6a59265aaed5
ripemd-160
338d6f725f43910d3691cf5474153ca44a4839ec
Diameter
41374102
Circumference
129980574.89207
Area
1.3444573909008E+15
Volume
3.7083811483857E+22
Surface area
5.3778295636033E+15
Circumference
129980574.89207
Perimeter
82748204
Area
427954079076601
Diagonal
29255908.089704
Surface area
2567724474459606
Volume
8.8531078595157E+21
Space diagonal
35831023.390769
Perimeter
62061153
Area
1.8530955206676E+14
Altitude
17915511.695384
Surface area
1.8530955206676E+14
Volume
1.0433487670066E+21
Height
9751969.3632346