20856747 is an odd 8-digits composite number following 20856746
and preceding 20856748 . In scientific notation, it is written as 2.0856747 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13708520 positive integers (up to 20856747) that are relatively prime to 20856747.
20856747 has 8 divisors, whose sum is 28200960
The reverse of 20856747 is 74765802
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million eight hundred fifty-six thousand seven hundred forty-seven
Scientific notation
2.0856747 × 10^7
Engineering notation
2.0856747 × 10^6
Prime Factorization
3 × 71 × 97919
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20856747
Product of the distinct prime numbers
The prime factorization of 20856747 is 3 × 71 × 97919.
Since it has a total of 3 prime factors.
1 , 2 , 57 , 47 , 194 , 421 , 7111 , 4980 , 51173 , 22586 , 296633 , 47144 , 2821812 , 6592225 , 74054174 , 5213576 , 638726771 , 450573005 , 4008840979 , 3120377388
n×2
41713494
n×3
62570241
n×4
83426988
n×5
104283735
n÷2
10428373.5
n÷3
6952249
n÷3
5214186.75
n÷5
4171349.4
n2
435003895422009
n3
9.0727661908313E+21
n4
1.8922838903232E+29
n5
3.9466886352647E+36
2 √n
4566.9187643312
3 √n
275.26364578146
4 √n
67.578981675749
5 √n
29.097073735311
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
-20856746
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 20856747 can be divided by 8 positive divisors.
The sum of these divisors (counting 20856747) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100011111110101011
3
Ternary
1110020122002010
4
Quaternary
1033203332223
5
Quinary
20314403442
6
Senary
2023011003
8
Octal
117437653
10
Decimal
20856747
12
Duodecimal
6b99a63
16
Hexadecimal
13e3fab
20
Vigesimal
6a71h7
36
Base36
cf163
md5
a5c6f3b7fb7bed1f839cc2bbdb122249
sha1
d431463964dad9e34f3beafe6429e531505ec607
sha256
99366aab24ecefced5361c280483a5efd4f4bfb1bd2bf7f49967f6541082551d
sha512
e2ebc2bf98364331964426f8419210840379f789033b5bb50cc1db6f2555601fb444dcdc23facd59b34a8cd9033434c98947410dfa83b58af9f9421ee92d9895
ripemd-160
f2577525605e3e3c60c740b64934f59003b787b0
Diameter
41713494
Circumference
131046806.30596
Area
1.3666050421407E+15
Volume
3.8003914150471E+22
Surface area
5.4664201685629E+15
Circumference
131046806.30596
Perimeter
83426988
Area
435003895422009
Diagonal
29495894.474384
Surface area
2610023372532054
Volume
9.0727661908313E+21
Space diagonal
36124945.48461
Perimeter
62570241
Area
1.8836221209032E+14
Altitude
18062472.742305
Surface area
1.8836221209032E+14
Volume
1.0692357496095E+21
Height
9831964.8247948