28662221 is an odd 8-digits composite number following 28662220
and preceding 28662222 . In scientific notation, it is written as 2.8662221 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 23122368 positive integers (up to 28662221) that are relatively prime to 28662221.
28662221 has 8 divisors, whose sum is 34683840
The reverse of 28662221 is 12226682
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-eight million six hundred sixty-two thousand two hundred twenty-one
Scientific notation
2.8662221 × 10^7
Engineering notation
2.8662221 × 10^6
Prime Factorization
7 × 17 × 240859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28662221
Product of the distinct prime numbers
The prime factorization of 28662221 is 7 × 17 × 240859.
Since it has a total of 3 prime factors.
4 , 5 , 90 , 59 , 286 , 518 , 4264 , 1010 , 60858 , 60616 , 38494 , 196128 , 3992600 , 6399196 , 82948085 , 5664045 , 491426171 , 449172801 , 2434126380 , 2119126486
n×2
57324442
n×3
85986663
n×4
114648884
n×5
143311105
n÷2
14331110.5
n÷3
9554073.6666667
n÷3
7165555.25
n÷5
5732444.2
n2
821522912652841
n3
2.3546671279019E+22
n4
6.7489989601361E+29
n5
1.9344129972419E+37
2 √n
5353.7109559632
3 √n
306.03418886941
4 √n
73.169057366917
5 √n
31.007158414525
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
-28662220
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 28662221 can be divided by 8 positive divisors.
The sum of these divisors (counting 28662221) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101010101100111001101
3
Ternary
1222221012011202
4
Quaternary
1231111213031
5
Quinary
24314142341
6
Senary
2502155245
8
Octal
155254715
10
Decimal
28662221
12
Duodecimal
9722b25
16
Hexadecimal
1b559cd
20
Vigesimal
8j2fb1
36
Base36
h2bwt
md5
6d19cba4f9026b524a10e235b03f05d3
sha1
8ca8cad540cda34c89b99a1c450fd8d22f0e87ef
sha256
cead7a04cc68d1baae74e15f19413ec126ec00d19564550ced1786754340fc0a
sha512
6f3b40cc87b173bb462d382758db796a6896ca2d794ffeef393d70cd7eb2f49c5c3e20a9002dccedb39f9fe700ca596640e368c612b18cec33062e27d279b0ef
ripemd-160
a02805b35e70a43ab619f3c980698972dc17c7ba
Diameter
57324442
Circumference
180090045.85833
Area
2.5808903471459E+15
Volume
9.8632066008882E+22
Surface area
1.0323561388583E+16
Circumference
180090045.85833
Perimeter
114648884
Area
821522912652841
Diagonal
40534501.665935
Surface area
4929137475917046
Volume
2.3546671279019E+22
Space diagonal
49644423.029768
Perimeter
85986663
Area
3.5572985607417E+14
Altitude
24822211.514884
Surface area
3.5572985607417E+14
Volume
2.7750018226275E+21
Height
13511500.555312