28991607 is an odd 8-digits composite number following 28991606
and preceding 28991608 . In scientific notation, it is written as 2.8991607 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 19327736 positive integers (up to 28991607) that are relatively prime to 28991607.
28991607 has 4 divisors, whose sum is 38655480
The reverse of 28991607 is 70619982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million nine hundred ninety-one thousand six hundred seven
Scientific notation
2.8991607 × 10^7
Engineering notation
2.8991607 × 10^6
Prime Factorization
3 × 9663869
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28991607
Product of the distinct prime numbers
The prime factorization of 28991607 is 3 × 9663869.
Since it has a total of 2 prime factors.
10 , 10 , 99 , 43 , 906 , 103 , 495 , 7439 , 25578 , 16569 , 746563 , 861950 , 1422741 , 1483635 , 50693499 , 78892506 , 440501207 , 386007701 , 2749728058 , 4377619105
n×2
57983214
n×3
86974821
n×4
115966428
n×5
144958035
n÷2
14495803.5
n÷3
9663869
n÷3
7247901.75
n÷5
5798321.4
n2
840513276442449
n3
2.4367830588902E+22
n4
7.0646256787602E+29
n5
2.0481485128072E+37
2 √n
5384.3854802568
3 √n
307.20204067994
4 √n
73.378372019668
5 √n
31.078099856551
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
-28991606
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 28991607 can be divided by 4 positive divisors.
The sum of these divisors (counting 28991607) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100110000001110111
3
Ternary
2000112221000020
4
Quaternary
1232212001313
5
Quinary
24410212412
6
Senary
2513220223
8
Octal
156460167
10
Decimal
28991607
12
Duodecimal
9861673
16
Hexadecimal
1ba6077
20
Vigesimal
913j07
36
Base36
h9e2f
md5
e2a885377f5bed1c2d0e6df807896623
sha1
a51c79ebb76c22112f944f3d47138eeff9ff37fa
sha256
72fd17bff927a00fc0c30e6666e472b70b731500e8a638542f7f0ce346ce54b1
sha512
ebbc3155dc4e4c875bd44504f4cb9554e4a3cbc0275cf8d32474e169d8d96d9a54e585cdab72b95ac1645615646006a448b188bf2d737efad5cfd6a8db9b1ec8
ripemd-160
140036ea1ec6df0a88497c0f1a5ce22585d46318
Diameter
57983214
Circumference
182159639.13392
Area
2.6405503345163E+15
Volume
1.0207173008269E+23
Surface area
1.0562201338065E+16
Circumference
182159639.13392
Perimeter
115966428
Area
840513276442449
Diagonal
41000323.814391
Surface area
5043079658654694
Volume
2.4367830588902E+22
Space diagonal
50214936.31707
Perimeter
86974821
Area
3.6395292480863E+14
Altitude
25107468.158535
Surface area
3.6395292480863E+14
Volume
2.8717763753696E+21
Height
13666774.604797