28991010 is an even 8-digits composite number following 28991009
and preceding 28991011 . In scientific notation, it is written as 2.8991010 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 7295232 positive integers (up to 28991010) that are relatively prime to 28991010.
28991010 has 32 divisors, whose sum is 59708160
The reverse of 28991010 is 01019982
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-eight million nine hundred ninety-one thousand ten
Scientific notation
2.8991010 × 10^7
Engineering notation
2.8991010 × 10^6
Prime Factorization
2 × 3 × 145 × 47 × 709
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
28991010
Product of the distinct prime numbers
The prime factorization of 28991010 is 2 × 3 × 145 × 47 × 709.
Since it has a total of 5 prime factors.
4 , 9 , 36 , 50 , 1000 , 641 , 9790 , 8467 , 13754 , 32456 , 97536 , 232755 , 7118507 , 8942018 , 26610200 , 31041969 , 208335571 , 4878543 , 1637471624 , 1329096493
n×2
57982020
n×3
86973030
n×4
115964040
n×5
144955050
n÷2
14495505
n÷3
9663670
n÷3
7247752.5
n÷5
5798202
n2
840478660820100
n3
2.4366325260622E+22
n4
7.0640437929395E+29
n5
2.0479376424155E+37
2 √n
5384.3300418901
3 √n
307.1999320136
4 √n
73.377994261836
5 √n
31.077971862415
1 , 2 , 3 , 6 , 47 , 94 , 141 , 145 , 282 , 290 , 435 , 709 , 870 , 1418 , 2127 , 4254 , 6815 , 13630 , 20445 , 33323 , 40890 , 66646 , 99969 , 102805 , 199938 , 205610 , 308415 , 616830 , 4831835 , 9663670 , 14495505 , 28991010
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28991009
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28991010 can be divided by 32 positive divisors.
The sum of these divisors (counting 28991010) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101110100101111000100010
3
Ternary
2000112220012010
4
Quaternary
1232211320202
5
Quinary
24410203020
6
Senary
2513213350
8
Octal
156457042
10
Decimal
28991010
12
Duodecimal
9861256
16
Hexadecimal
1ba5e22
20
Vigesimal
913haa
36
Base36
h9dlu
md5
1efe11dba2eff1e03f705c7309c00b35
sha1
5f650bce8a101940bf8dadc8368a6f524c48808a
sha256
5f2830be6b58f5e91a51d5ac4c5b970d1f5404a0984c1bc4c2d6c9fa2e4f006d
sha512
2226795b38db287e9158fbaeaa1adabebdd4ee7b5675335d17c0272cc937f3fbbf6558995ab5a840fb4b6cba706a7477211ba1df82229815ef64a09bc9c2ede9
ripemd-160
a47672bce432a5009b903abea6996d93e10ea657
Diameter
57982020
Circumference
182155888.0723
Area
2.6404415863314E+15
Volume
1.0206542457833E+23
Surface area
1.0561766345326E+16
Circumference
182155888.0723
Perimeter
115964040
Area
840478660820100
Diagonal
40999479.528894
Surface area
5042871964920600
Volume
2.4366325260622E+22
Space diagonal
50213902.282737
Perimeter
86973030
Area
3.6393793580447E+14
Altitude
25106951.141369
Surface area
3.6393793580447E+14
Volume
2.8715989707305E+21
Height
13666493.176298