28331385 is an odd 8-digits composite number following 28331384
and preceding 28331386 . In scientific notation, it is written as 2.8331385 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 15110064 positive integers (up to 28331385) that are relatively prime to 28331385.
28331385 has 4 divisors, whose sum is 30220160
The reverse of 28331385 is 58313382
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-eight million three hundred thirty-one thousand three hundred eighty-five
Scientific notation
2.8331385 × 10^7
Engineering notation
2.8331385 × 10^6
Prime Factorization
15 × 1888759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28331385
Product of the distinct prime numbers
The prime factorization of 28331385 is 15 × 1888759.
Since it has a total of 2 prime factors.
10 , 7 , 90 , 50 , 404 , 636 , 2578 , 2076 , 97538 , 53402 , 495608 , 145419 , 6461746 , 8166933 , 2682607 , 10839954 , 811421821 , 888889949 , 1737900716 , 5390384820
n×2
56662770
n×3
84994155
n×4
113325540
n×5
141656925
n÷2
14165692.5
n÷3
9443795
n÷3
7082846.25
n÷5
5666277
n2
802667376018225
n3
2.2740678456912E+22
n4
6.4427491652398E+29
n5
1.8253200705884E+37
2 √n
5322.7234570284
3 √n
304.85215444909
4 √n
72.95699731368
5 √n
30.93524509156
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
-28331384
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 28331385 can be divided by 4 positive divisors.
The sum of these divisors (counting 28331385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100000100110101111001
3
Ternary
1222022101100120
4
Quaternary
1230010311321
5
Quinary
24223101020
6
Senary
2451123453
8
Octal
154046571
10
Decimal
28331385
12
Duodecimal
95a3589
16
Hexadecimal
1b04d79
20
Vigesimal
8h1895
36
Base36
gv8mx
md5
ac74fba0254b133cfc569a4bb44b8150
sha1
e988640f891100f031fbea8076e998d4450813b2
sha256
2b6455f7cc9c43a7658b5d0841b0a2f139faa83fc1a146f06df7ef43be67dc49
sha512
6002a98c7d9ae778e7e880d3d00e60534b63ddc6b076257df0f338f4a2f3ad75513b336cf68fcc41bcf81f333529e94bec9609f07188f3ca01742431a7543061
ripemd-160
2915cc309203e1cab84fb9937995c9739641ce97
Diameter
56662770
Circumference
178011341.96405
Area
2.5216539317751E+15
Volume
9.525593117051E+22
Surface area
1.00866157271E+16
Circumference
178011341.96405
Perimeter
113325540
Area
802667376018225
Diagonal
40066628.907814
Surface area
4816004256109350
Volume
2.2740678456912E+22
Space diagonal
49071398.268795
Perimeter
84994155
Area
3.4756516921039E+14
Altitude
24535699.134397
Surface area
3.4756516921039E+14
Volume
2.6800146576109E+21
Height
13355542.969271