20956749 is an odd 8-digits composite number following 20956748
and preceding 20956750 . In scientific notation, it is written as 2.0956749 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 12148400 positive integers (up to 20956749) that are relatively prime to 20956749.
20956749 has 16 divisors, whose sum is 31809024
The reverse of 20956749 is 94765902
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred fifty-six thousand seven hundred forty-nine
Scientific notation
2.0956749 × 10^7
Engineering notation
2.0956749 × 10^6
Prime Factorization
3 × 11 × 23 × 27611
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20956749
Product of the distinct prime numbers
The prime factorization of 20956749 is 3 × 11 × 23 × 27611.
Since it has a total of 4 prime factors.
2 , 8 , 42 , 54 , 558 , 207 , 7637 , 3751 , 12237 , 40267 , 480873 , 896266 , 4415378 , 2638172 , 72773525 , 60399242 , 657880302 , 532615477 , 6004226104 , 2271135707
n×2
41913498
n×3
62870247
n×4
83826996
n×5
104783745
n÷2
10478374.5
n÷3
6985583
n÷3
5239187.25
n÷5
4191349.8
n2
439185328649001
n3
9.2038966969796E+21
n4
1.9288375290053E+29
n5
4.0422163957145E+36
2 √n
4577.8541916492
3 √n
275.70288074333
4 √n
67.659841794444
5 √n
29.124922766404
1 , 3 , 11 , 23 , 33 , 69 , 253 , 759 , 27611 , 82833 , 303721 , 635053 , 911163 , 1905159 , 6985583 , 20956749
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
-20956748
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 20956749 can be divided by 16 positive divisors.
The sum of these divisors (counting 20956749) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111111100011001001101
3
Ternary
1110102201020220
4
Quaternary
1033330121031
5
Quinary
20331103444
6
Senary
2025101553
8
Octal
117743115
10
Decimal
20956749
12
Duodecimal
70278b9
16
Hexadecimal
13fc64d
20
Vigesimal
6ajbh9
36
Base36
ch6bx
md5
5be677a287a214edbc27ed6f65a6377f
sha1
93e25840618a9d78a688d4ed5d2f803fd54a490d
sha256
dc4a465eb7606c56864ec25114a0322e727fc9ae4a0b0b51dda3a85727e95127
sha512
32ba27aea93e0bb8035de1e9085bc49c0bd966145424dc883aa9e9efb23969bc452b5579a0dd38398fd7137f5ea4dec91a9511c533d48e78c163e0608d7d4f89
ripemd-160
88da6dc16e32b9aeac2b42b3bbad5adc6d0ec75c
Diameter
41913498
Circumference
131675137.40305
Area
1.3797414020481E+15
Volume
3.8553192330174E+22
Surface area
5.5189656081925E+15
Circumference
131675137.40305
Perimeter
83826996
Area
439185328649001
Diagonal
29637318.659049
Surface area
2635111971894006
Volume
9.2038966969796E+21
Space diagonal
36298154.029468
Perimeter
62870247
Area
1.9017282578973E+14
Altitude
18149077.014734
Surface area
1.9017282578973E+14
Volume
1.0846896279625E+21
Height
9879106.2196829