28991623 is an odd 8-digits composite number following 28991622
and preceding 28991624 . In scientific notation, it is written as 2.8991623 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 28927728 positive integers (up to 28991623) that are relatively prime to 28991623.
28991623 has 4 divisors, whose sum is 29055520
The reverse of 28991623 is 32619982
Previous prime number is 457
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million nine hundred ninety-one thousand six hundred twenty-three
Scientific notation
2.8991623 × 10^7
Engineering notation
2.8991623 × 10^6
Prime Factorization
457 × 63439
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28991623
Product of the distinct prime numbers
The prime factorization of 28991623 is 457 × 63439.
Since it has a total of 2 prime factors.
9 , 6 , 27 , 13 , 633 , 38 , 6119 , 2342 , 36607 , 47180 , 59338 , 890656 , 1694895 , 4429753 , 92079766 , 43780544 , 144527401 , 549195262 , 837592160 , 237134874
n×2
57983246
n×3
86974869
n×4
115966492
n×5
144958115
n÷2
14495811.5
n÷3
9663874.3333333
n÷3
7247905.75
n÷5
5798324.6
n2
840514204174129
n3
2.4367870933561E+22
n4
7.0646412741847E+29
n5
2.048154164514E+37
2 √n
5384.3869660343
3 √n
307.20209719321
4 √n
73.378382143751
5 √n
31.07810328685
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28991622
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28991623 can be divided by 4 positive divisors.
The sum of these divisors (counting 28991623) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100110000010000111
3
Ternary
2000112221000211
4
Quaternary
1232212002013
5
Quinary
24410212443
6
Senary
2513220251
8
Octal
156460207
10
Decimal
28991623
12
Duodecimal
9861687
16
Hexadecimal
1ba6087
20
Vigesimal
913j13
36
Base36
h9e2v
md5
b973dd452b065faedd357d5ce2d14868
sha1
84fab415d353167c5d5d1e07fec814658d5de787
sha256
00951ea0fc668b9b3dad7fc9eccbadf8f04688a9e95d2126f6c1bd2acaec71c5
sha512
7c9a1544033d0ca3f78825941a4bd16bf4c563937108a2e564e4394853bfd1fc8c505e5258f6aa5a476b6d51b04b1f4df2117cbf7f80e9a32ce5a571f2393a46
ripemd-160
10fc3aea3477feed83ef325032c3800b3e95be4b
Diameter
57983246
Circumference
182159739.66489
Area
2.6405532490713E+15
Volume
1.02071899078E+23
Surface area
1.0562212996285E+16
Circumference
182159739.66489
Perimeter
115966492
Area
840514204174129
Diagonal
41000346.441808
Surface area
5043085225044774
Volume
2.4367870933561E+22
Space diagonal
50214964.029882
Perimeter
86974869
Area
3.6395332652823E+14
Altitude
25107482.014941
Surface area
3.6395332652823E+14
Volume
2.8717811300333E+21
Height
13666782.147269