20687556 is an even 8-digits composite number following 20687555
and preceding 20687557 . In scientific notation, it is written as 2.0687556 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 6657952 positive integers (up to 20687556) that are relatively prime to 20687556.
20687556 has 12 divisors, whose sum is 36619968
The reverse of 20687556 is 65578602
Previous prime number is 87
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred eighty-seven thousand five hundred fifty-six
Scientific notation
2.0687556 × 10^7
Engineering notation
2.0687556 × 10^6
Prime Factorization
2 × 2 × 87 × 59447
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10343778
Product of the distinct prime numbers
The prime factorization of 20687556 is 2 × 2 × 87 × 59447.
Since it has a total of 4 prime factors.
8 , 6 , 68 , 98 , 967 , 451 , 7892 , 7259 , 77860 , 75344 , 158376 , 320003 , 5363813 , 7562260 , 730174 , 44253391 , 617172528 , 842818293 , 439282836 , 72188170
n×2
41375112
n×3
62062668
n×4
82750224
n×5
103437780
n÷2
10343778
n÷3
6895852
n÷3
5171889
n÷5
4137511.2
n2
427974973253136
n3
8.8537562257728E+21
n4
1.8316257773102E+29
n5
3.7891860839149E+36
2 √n
4548.3575057376
3 √n
274.51730641613
4 √n
67.441511739712
5 √n
29.049712415469
1 , 2 , 4 , 87 , 174 , 348 , 59447 , 118894 , 237788 , 5171889 , 10343778 , 20687556
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
-20687555
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 20687556 can be divided by 12 positive divisors.
The sum of these divisors (counting 20687556) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010101011000100
3
Ternary
1102221000222210
4
Quaternary
1032322223010
5
Quinary
20244000211
6
Senary
2015223420
8
Octal
116725304
10
Decimal
20687556
12
Duodecimal
6b17b70
16
Hexadecimal
13baac4
20
Vigesimal
695ihg
36
Base36
cbemc
md5
124aaa6a71642bb07a07189f7b10dcfe
sha1
f9da35c187c9e5afcb7fb9520b133d538b21c024
sha256
832bdfdb241f16ae604f6b28174356d40b1199085f39ab60a2eb1ec790d8b87a
sha512
486f3fab1d644c0094419659c9d516504a3400f62835db8197215716c810b4c6b1e4d0ce3ce3cf0591553d5c4be34ce18eb7ab3e39d3ff23806a005130ccbd94
ripemd-160
039448ec5c1c0d64d42c5d9bf483eaedfbc9e147
Diameter
41375112
Circumference
129983747.90065
Area
1.3445230318923E+15
Volume
3.7086527354083E+22
Surface area
5.3780921275694E+15
Circumference
129983747.90065
Perimeter
82750224
Area
427974973253136
Diagonal
29256622.267553
Surface area
2567849839518816
Volume
8.8537562257728E+21
Space diagonal
35831898.076426
Perimeter
62062668
Area
1.8531859951059E+14
Altitude
17915949.038213
Surface area
1.8531859951059E+14
Volume
1.0434251777028E+21
Height
9752207.4225176