28261321 is an odd 8-digits composite number following 28261320
and preceding 28261322 . In scientific notation, it is written as 2.8261321 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 25655520 positive integers (up to 28261321) that are relatively prime to 28261321.
28261321 has 8 divisors, whose sum is 30874464
The reverse of 28261321 is 12316282
Previous prime number is 947
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-eight million two hundred sixty-one thousand three hundred twenty-one
Scientific notation
2.8261321 × 10^7
Engineering notation
2.8261321 × 10^6
Prime Factorization
11 × 947 × 2713
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28261321
Product of the distinct prime numbers
The prime factorization of 28261321 is 11 × 947 × 2713.
Since it has a total of 3 prime factors.
9 , 8 , 68 , 21 , 909 , 583 , 4664 , 4428 , 23372 , 35328 , 398539 , 511151 , 174125 , 2412 , 71715177 , 54622942 , 91151081 , 204870457 , 3912208778 , 8838008435
n×2
56522642
n×3
84783963
n×4
113045284
n×5
141306605
n÷2
14130660.5
n÷3
9420440.3333333
n÷3
7065330.25
n÷5
5652264.2
n2
798702264665041
n3
2.2572381085126E+22
n4
6.3792530758107E+29
n5
1.8028611891572E+37
2 √n
5316.1377897869
3 √n
304.6006454745
4 √n
72.911849447033
5 √n
30.919929255413
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
-28261320
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 28261321 can be divided by 8 positive divisors.
The sum of these divisors (counting 28261321) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011110011101111001001
3
Ternary
1222011211020121
4
Quaternary
1223303233021
5
Quinary
24213330241
6
Senary
2445423241
8
Octal
153635711
10
Decimal
28261321
12
Duodecimal
956ab21
16
Hexadecimal
1af3bc9
20
Vigesimal
8gcd61
36
Base36
gtqkp
md5
a1f267c8d0909b891c90be6cb774de95
sha1
bfcee8dba7bfeb744d211b6b069a0c274943012a
sha256
299cb38c141c5edf462258c2e9951d16133cc914587d0ba1b8cf260e44a2ac7a
sha512
599ec84144988e13b9dfa3203dd4d629cceb64a6951c22df2a4f4153eea7e1b0a170dae7e562b6a46685c57372acf8fd6765d9ff2225f81072898f4ad475c1bd
ripemd-160
5cbe50c11a4c8baeaad14138c799d5d733631506
Diameter
56522642
Circumference
177571116.86869
Area
2.5091971670772E+15
Volume
9.455096878808E+22
Surface area
1.0036788668309E+16
Circumference
177571116.86869
Perimeter
113045284
Area
798702264665041
Diagonal
39967543.44878
Surface area
4792213587990246
Volume
2.2572381085126E+22
Space diagonal
48950043.861013
Perimeter
84783963
Area
3.4584822563004E+14
Altitude
24475021.930507
Surface area
3.4584822563004E+14
Volume
2.6601806221366E+21
Height
13322514.482927