20971556 is an even 8-digits composite number following 20971555
and preceding 20971557 . In scientific notation, it is written as 2.0971556 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 18 positive divisors.
There are 10306560 positive integers (up to 20971556) that are relatively prime to 20971556.
20971556 has 18 divisors, whose sum is 37338210
The reverse of 20971556 is 65517902
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred seventy-one thousand five hundred fifty-six
Scientific notation
2.0971556 × 10^7
Engineering notation
2.0971556 × 10^6
Prime Factorization
2 × 2 × 61 × 61 × 1409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
171898
Product of the distinct prime numbers
The prime factorization of 20971556 is 2 × 2 × 61 × 61 × 1409.
Since it has a total of 5 prime factors.
2 , 1 , 34 , 56 , 829 , 643 , 690 , 9425 , 92755 , 21431 , 313208 , 924526 , 2420148 , 6966156 , 81510453 , 20296128 , 123536569 , 481477477 , 4725453288 , 1252023356
n×2
41943112
n×3
62914668
n×4
83886224
n×5
104857780
n÷2
10485778
n÷3
6990518.6666667
n÷3
5242889
n÷5
4194311.2
n2
439806161061136
n3
9.2234195358386E+21
n4
1.9342945930733E+29
n5
4.0565167379135E+36
2 √n
4579.4711485061
3 √n
275.7677981195
4 √n
67.671789901747
5 √n
29.129037249068
1 , 2 , 4 , 61 , 122 , 244 , 1409 , 2818 , 3721 , 5636 , 7442 , 14884 , 85949 , 171898 , 343796 , 5242889 , 10485778 , 20971556
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20971555
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20971556 can be divided by 18 positive divisors.
The sum of these divisors (counting 20971556) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1010000000000000000100100
3
Ternary
1110110110120022
4
Quaternary
1100000000210
5
Quinary
20332042211
6
Senary
2025254312
8
Octal
120000044
10
Decimal
20971556
12
Duodecimal
7034398
16
Hexadecimal
1400024
20
Vigesimal
6b18hg
36
Base36
chhr8
md5
856a1eebda22b268e9b62e079cc8b207
sha1
a54d3cdc76e4fca52fcfaad207e4b6938c905c88
sha256
4fd299413b0bcbd88265246ad16757dc5b8a826b1c426e0a052c28a904c59c50
sha512
f79f78a857609f7a427fc8c8924386b948021174a79ac4577b75af49cb6a6f12daebf2d5760bb2041afba9f171ceb589a60e267857fa5e8b587221015ec1ac82
ripemd-160
22ea1bce5e8301e4a779f53789b4394c0e2e82e7
Diameter
41943112
Circumference
131768172.52789
Area
1.3816918045932E+15
Volume
3.8634969406356E+22
Surface area
5.5267672183728E+15
Circumference
131768172.52789
Perimeter
83886224
Area
439806161061136
Diagonal
29658258.919267
Surface area
2638836966366816
Volume
9.2234195358386E+21
Space diagonal
36323800.505776
Perimeter
62914668
Area
1.9044165410993E+14
Altitude
18161900.252888
Surface area
1.9044165410993E+14
Volume
1.0869904165867E+21
Height
9886086.3064223