28997218 is an even 8-digits composite number following 28997217
and preceding 28997219 . In scientific notation, it is written as 2.8997218 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 14424816 positive integers (up to 28997218) that are relatively prime to 28997218.
28997218 has 8 divisors, whose sum is 43717212
The reverse of 28997218 is 81279982
Previous prime number is 197
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-eight million nine hundred ninety-seven thousand two hundred eighteen
Scientific notation
2.8997218 × 10^7
Engineering notation
2.8997218 × 10^6
Prime Factorization
2 × 197 × 73597
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28997218
Product of the distinct prime numbers
The prime factorization of 28997218 is 2 × 197 × 73597.
Since it has a total of 3 prime factors.
1 , 4 , 32 , 80 , 593 , 357 , 313 , 7617 , 17036 , 70149 , 922549 , 1775 , 6211829 , 5363295 , 86732369 , 80463451 , 138245800 , 478102992 , 560717190 , 5628121435
n×2
57994436
n×3
86991654
n×4
115988872
n×5
144986090
n÷2
14498609
n÷3
9665739.3333333
n÷3
7249304.5
n÷5
5799443.6
n2
840838651739524
n3
2.4381981687317E+22
n4
7.0700963825914E+29
n5
2.0501312608701E+37
2 √n
5384.906498724
3 √n
307.22185790337
4 √n
73.381922152012
5 √n
31.079302726886
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28997217
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28997218 can be divided by 8 positive divisors.
The sum of these divisors (counting 28997218) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110100111011001100010
3
Ternary
2000120012201001
4
Quaternary
1232213121202
5
Quinary
24410402333
6
Senary
2513302214
8
Octal
156473142
10
Decimal
28997218
12
Duodecimal
986496a
16
Hexadecimal
1ba7662
20
Vigesimal
914d0i
36
Base36
h9iea
md5
860ca21ee2fc14cd8c13faad6910038d
sha1
f1a2f8aabc270aee0f32374b1975e79f7fac1e54
sha256
8d9106c6189e162a85e4f55662affca4a92bb7f19500c3e2a5cbacbfbe512c82
sha512
46644ca62fb931613ba753d574448812921f7fc1430f3f8a0b2f120b536c1533be0d7b414478ab1e639af85eec4a2e2483d81c839a7a4ea0e65dceabf5ef9abe
ripemd-160
ddb4407bb9f065c78b7b85e0201ba1f07f371cb0
Diameter
57994436
Circumference
182194894.08668
Area
2.6415725311592E+15
Volume
1.0213100606511E+23
Surface area
1.0566290124637E+16
Circumference
182194894.08668
Perimeter
115988872
Area
840838651739524
Diagonal
41008258.966689
Surface area
5045031910437144
Volume
2.4381981687317E+22
Space diagonal
50224654.854151
Perimeter
86991654
Area
3.6409381644514E+14
Altitude
25112327.427075
Surface area
3.6409381644514E+14
Volume
2.8734440983114E+21
Height
13669419.655563