28169621 is an odd 8-digits composite number following 28169620
and preceding 28169622 . In scientific notation, it is written as 2.8169621 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 28026432 positive integers (up to 28169621) that are relatively prime to 28169621.
28169621 has 4 divisors, whose sum is 28312812
The reverse of 28169621 is 12696182
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million one hundred sixty-nine thousand six hundred twenty-one
Scientific notation
2.8169621 × 10^7
Engineering notation
2.8169621 × 10^6
Prime Factorization
197 × 142993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28169621
Product of the distinct prime numbers
The prime factorization of 28169621 is 197 × 142993.
Since it has a total of 2 prime factors.
2 , 4 , 47 , 76 , 228 , 958 , 5221 , 94 , 45236 , 42575 , 263531 , 381971 , 197436 , 4293745 , 30475911 , 83564446 , 335862312 , 959137069 , 1306739150 , 2111828353
n×2
56339242
n×3
84508863
n×4
112678484
n×5
140848105
n÷2
14084810.5
n÷3
9389873.6666667
n÷3
7042405.25
n÷5
5633924.2
n2
793527547283641
n3
2.235337026004E+22
n4
6.2968596829799E+29
n5
1.7738015075972E+37
2 √n
5307.5060998552
3 √n
304.27084083778
4 √n
72.852632758571
5 √n
30.899837875631
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
-28169620
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 28169621 can be divided by 4 positive divisors.
The sum of these divisors (counting 28169621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011011101010110010101
3
Ternary
1222000011110022
4
Quaternary
1223131112111
5
Quinary
24202411441
6
Senary
2443434525
8
Octal
153352625
10
Decimal
28169621
12
Duodecimal
9525a45
16
Hexadecimal
1add595
20
Vigesimal
8g1411
36
Base36
grrth
md5
1cea5780a22a13e73821d34a4515f425
sha1
b0271fdee1247f65c70a91102a30c678de4341c6
sha256
a7ad2e86e12860052e042931c884b613652c33be2072c20799bc90fa62c184cc
sha512
67bfe9504a2e2fde3b505bf3401608febc185d17fd957329b41b6cf3130121fd8393916a28a14ed9177b5dd9afb47f8d5a03a220af68230e977683d48923565b
ripemd-160
416fb69457239d841030480bb57cb40e8617a5f1
Diameter
56339242
Circumference
176994948.77602
Area
2.4929403129674E+15
Volume
9.3633578389218E+22
Surface area
9.9717612518697E+15
Circumference
176994948.77602
Perimeter
112678484
Area
793527547283641
Diagonal
39837860.06511
Surface area
4761165283701846
Volume
2.235337026004E+22
Space diagonal
48791214.801959
Perimeter
84508863
Area
3.436075072752E+14
Altitude
24395607.40098
Surface area
3.436075072752E+14
Volume
2.6343699488746E+21
Height
13279286.68837