28391351 is an odd 8-digits composite number following 28391350
and preceding 28391352 . In scientific notation, it is written as 2.8391351 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28362312 positive integers (up to 28391351) that are relatively prime to 28391351.
28391351 has 4 divisors, whose sum is 28420392
The reverse of 28391351 is 15319382
Previous prime number is 1013
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million three hundred ninety-one thousand three hundred fifty-one
Scientific notation
2.8391351 × 10^7
Engineering notation
2.8391351 × 10^6
Prime Factorization
1013 × 28027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28391351
Product of the distinct prime numbers
The prime factorization of 28391351 is 1013 × 28027.
Since it has a total of 2 prime factors.
3 , 3 , 53 , 28 , 822 , 139 , 8259 , 6460 , 47835 , 3793 , 443348 , 197751 , 6955706 , 3946479 , 96668482 , 68155351 , 24155824 , 126269093 , 6511265738 , 2369167286
n×2
56782702
n×3
85174053
n×4
113565404
n×5
141956755
n÷2
14195675.5
n÷3
9463783.6666667
n÷3
7097837.75
n÷5
5678270.2
n2
806068811605201
n3
2.2885382560436E+22
n4
6.4974692904262E+29
n5
1.8447193123621E+37
2 √n
5328.353498033
3 √n
305.06708548517
4 √n
72.995571770026
5 √n
30.94832948072
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
-28391350
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 28391351 can be divided by 4 positive divisors.
The sum of these divisors (counting 28391351) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010011011110110111
3
Ternary
1222102102121112
4
Quaternary
1230103132313
5
Quinary
24232010401
6
Senary
2452305235
8
Octal
154233667
10
Decimal
28391351
12
Duodecimal
961221b
16
Hexadecimal
1b137b7
20
Vigesimal
8h8i7b
36
Base36
gwiwn
md5
6425bb4bb766575ac1651a2209fe8fde
sha1
1a057dbe3cae97223f6fe10ad3e264b4d3fab08c
sha256
50bda826f80ad8e0cfe6004bb457291815bbc82bd92d4088e96798671970ab77
sha512
e797947ca6a89ae3db24dfb53a6c3f11202b52fadcf33062e7dc522b572fe28cfadb9daa6ed185919dd4e72fd3ad4584cf2b226b57fa768cacaddcba5ae1d379
ripemd-160
eefa634681790d266615927b9fb25ee8dc075b20
Diameter
56782702
Circumference
178388119.45418
Area
2.5323398568268E+15
Volume
9.5862066301944E+22
Surface area
1.0129359427307E+16
Circumference
178388119.45418
Perimeter
113565404
Area
806068811605201
Diagonal
40151433.638295
Surface area
4836412869631206
Volume
2.2885382560436E+22
Space diagonal
49175262.427521
Perimeter
85174053
Area
3.4903803402422E+14
Altitude
24587631.213761
Surface area
3.4903803402422E+14
Volume
2.6970681997555E+21
Height
13383811.212765