27996921 is an odd 8-digits composite number following 27996920
and preceding 27996922 . In scientific notation, it is written as 2.7996921 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 18597600 positive integers (up to 27996921) that are relatively prime to 27996921.
27996921 has 16 divisors, whose sum is 38851008
The reverse of 27996921 is 12969972
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-seven million nine hundred ninety-six thousand nine hundred twenty-one
Scientific notation
2.7996921 × 10^7
Engineering notation
2.7996921 × 10^6
Prime Factorization
3 × 27 × 421 × 821
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
27996921
Product of the distinct prime numbers
The prime factorization of 27996921 is 3 × 27 × 421 × 821.
Since it has a total of 4 prime factors.
8 , 8 , 42 , 16 , 912 , 670 , 7825 , 2465 , 11838 , 78646 , 282641 , 882991 , 6937139 , 3768315 , 89143383 , 10518378 , 466708369 , 578140228 , 9417179524 , 3323926051
n×2
55993842
n×3
83990763
n×4
111987684
n×5
139984605
n÷2
13998460.5
n÷3
9332307
n÷3
6999230.25
n÷5
5599384.2
n2
783827585480241
n3
2.1944758988311E+22
n4
6.1438568375978E+29
n5
1.7200907451754E+37
2 √n
5291.2116759774
3 √n
303.64776623498
4 √n
72.740715393632
5 √n
30.861856983121
1 , 3 , 27 , 81 , 421 , 821 , 1263 , 2463 , 11367 , 22167 , 34101 , 66501 , 345641 , 1036923 , 9332307 , 27996921
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
-27996920
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 27996921 can be divided by 16 positive divisors.
The sum of these divisors (counting 27996921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101010110011001011111001
3
Ternary
1221200101120000
4
Quaternary
1222303023321
5
Quinary
24131400141
6
Senary
2440023213
8
Octal
152631371
10
Decimal
27996921
12
Duodecimal
9461b09
16
Hexadecimal
1ab32f9
20
Vigesimal
8ejc61
36
Base36
go2k9
md5
809631e4af5f72b74323a5bd40af041c
sha1
9183f54822b12f5df6be25d3f399e6ec4484ec60
sha256
620e8e2e06ca40ec0af59b168f771912475a7f77f22a6585ac42a6f4a8f479ad
sha512
23d629b47bfc616dc34891e5fc2e1426f0528e18f6a28ae348b2d546c293106f5010e27ea321d9ee70f14cebbe2d37d69f9402fa6d9d7d00854595236207bbc6
ripemd-160
0baf00bf75868b9699099cabfd94d3b6faa064cf
Diameter
55993842
Circumference
175909842.67347
Area
2.4624669842258E+15
Volume
9.1921991496635E+22
Surface area
9.849867936903E+15
Circumference
175909842.67347
Perimeter
111987684
Area
783827585480241
Diagonal
39593625.382888
Surface area
4702965512881446
Volume
2.1944758988311E+22
Space diagonal
48492089.627492
Perimeter
83990763
Area
3.3940730060645E+14
Altitude
24246044.813746
Surface area
3.3940730060645E+14
Volume
2.5862146486899E+21
Height
13197875.127629