28991608 is an even 8-digits composite number following 28991607
and preceding 28991609 . In scientific notation, it is written as 2.8991608 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 8 positive divisors.
There are 14495800 positive integers (up to 28991608) that are relatively prime to 28991608.
28991608 has 8 divisors, whose sum is 54359280
The reverse of 28991608 is 80619982
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-eight million nine hundred ninety-one thousand six hundred eight
Scientific notation
2.8991608 × 10^7
Engineering notation
2.8991608 × 10^6
Prime Factorization
2 × 2 × 2 × 3623951
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
7247902
Product of the distinct prime numbers
The prime factorization of 28991608 is 2 × 2 × 2 × 3623951.
Since it has a total of 4 prime factors.
2 , 8 , 21 , 93 , 645 , 56 , 6523 , 5847 , 40433 , 1580 , 947174 , 64260 , 6238071 , 3853101 , 60800351 , 68093500 , 301500026 , 462568944 , 9348615508 , 8474456390
n×2
57983216
n×3
86974824
n×4
115966432
n×5
144958040
n÷2
14495804
n÷3
9663869.3333333
n÷3
7247902
n÷5
5798321.6
n2
840513334425664
n3
2.4367833110442E+22
n4
7.0646266534735E+29
n5
2.0481488660385E+37
2 √n
5384.3855731179
3 √n
307.20204421202
4 √n
73.378372652423
5 √n
31.078100070945
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
-28991607
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 28991608 can be divided by 8 positive divisors.
The sum of these divisors (counting 28991608) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110100110000001111000
3
Ternary
2000112221000021
4
Quaternary
1232212001320
5
Quinary
24410212413
6
Senary
2513220224
8
Octal
156460170
10
Decimal
28991608
12
Duodecimal
9861674
16
Hexadecimal
1ba6078
20
Vigesimal
913j08
36
Base36
h9e2g
md5
ec3e8db96a07c2ad1301292de9d79f81
sha1
faefef33d53256c1c8feb9a369426405b1e4708e
sha256
23555e9c1cbd8ad19bf84684cf1d8c5d3cc5dfedba4f31ffc6e54d67d8cd473d
sha512
837a7ab69e2c2be3571e55dd2272df915f73ceb76849dec0bf2c0267e126da466462c4e0633713b49d7c2c8bfc97c18478cfc8cc51cf138324e758a1eda0d3fe
ripemd-160
9cb48332d255cb812e7e56aed63ae632dba6262b
Diameter
57983216
Circumference
182159645.41711
Area
2.6405505166759E+15
Volume
1.0207174064489E+23
Surface area
1.0562202066704E+16
Circumference
182159645.41711
Perimeter
115966432
Area
840513334425664
Diagonal
41000325.228604
Surface area
5043080006553984
Volume
2.4367833110442E+22
Space diagonal
50214938.04912
Perimeter
86974824
Area
3.639529499161E+14
Altitude
25107469.02456
Surface area
3.639529499161E+14
Volume
2.8717766725359E+21
Height
13666775.076201