28451331 is an odd 8-digits composite number following 28451330
and preceding 28451332 . In scientific notation, it is written as 2.8451331 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 18860688 positive integers (up to 28451331) that are relatively prime to 28451331.
28451331 has 12 divisors, whose sum is 32144112
The reverse of 28451331 is 13315482
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-eight million four hundred fifty-one thousand three hundred thirty-one
Scientific notation
2.8451331 × 10^7
Engineering notation
2.8451331 × 10^6
Prime Factorization
9 × 9 × 197 × 1783
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3161259
Product of the distinct prime numbers
The prime factorization of 28451331 is 9 × 9 × 197 × 1783.
Since it has a total of 4 prime factors.
4 , 10 , 69 , 42 , 272 , 849 , 6464 , 2910 , 7101 , 11131 , 374953 , 794229 , 4014785 , 6079288 , 522085 , 49327917 , 964265524 , 248071861 , 7885910359 , 4320369779
n×2
56902662
n×3
85353993
n×4
113805324
n×5
142256655
n÷2
14225665.5
n÷3
9483777
n÷3
7112832.75
n÷5
5690266.2
n2
809478235671561
n3
2.3030733220388E+22
n4
6.5525501402594E+29
n5
1.8642877293462E+37
2 √n
5333.9789088447
3 √n
305.28176416671
4 √n
73.034094153653
5 √n
30.961394826887
1 , 9 , 81 , 197 , 1773 , 1783 , 15957 , 16047 , 144423 , 351251 , 3161259 , 28451331
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28451330
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28451331 can be divided by 12 positive divisors.
The sum of these divisors (counting 28451331) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1101100100010001000000011
3
Ternary
1222112110220000
4
Quaternary
1230202020003
5
Quinary
24240420311
6
Senary
2453451043
8
Octal
154421003
10
Decimal
28451331
12
Duodecimal
9640a83
16
Hexadecimal
1b22203
20
Vigesimal
8hg86b
36
Base36
gxt6r
md5
3f72f02dc26e89510f9e39c050863d4e
sha1
c8f88dc1e500fac41ddc0441c0f8c7d537a8f40e
sha256
9f27f398b0893ae12e74a75f4f2202dcc94a9c97a67b829e9c4b0a45037f2b9d
sha512
2c62f50337678afb6fe17fe6c599e7713f5a79cda05eb503f935189e23a88821b19e0ab044a8fd0e9dac146fc99fdba200641ddaf905aaa8231f7917b5900980
ripemd-160
98cbd53554e3ae0adbc0c7611830cbebacf0d211
Diameter
56902662
Circumference
178764984.9089
Area
2.5430508784266E+15
Volume
9.6470909722608E+22
Surface area
1.0172203513706E+16
Circumference
178764984.9089
Perimeter
113805324
Area
809478235671561
Diagonal
40236258.167766
Surface area
4856869414029366
Volume
2.3030733220388E+22
Space diagonal
49279150.834959
Perimeter
85353993
Area
3.5051435795109E+14
Altitude
24639575.41748
Surface area
3.5051435795109E+14
Volume
2.7141979393057E+21
Height
13412086.055922