28418645 is an odd 8-digits composite number following 28418644
and preceding 28418646 . In scientific notation, it is written as 2.8418645 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 21315840 positive integers (up to 28418645) that are relatively prime to 28418645.
28418645 has 16 divisors, whose sum is 36246528
The reverse of 28418645 is 54681482
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million four hundred eighteen thousand six hundred forty-five
Scientific notation
2.8418645 × 10^7
Engineering notation
2.8418645 × 10^6
Prime Factorization
17 × 5 × 367 × 911
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
28418645
Product of the distinct prime numbers
The prime factorization of 28418645 is 17 × 5 × 367 × 911.
Since it has a total of 4 prime factors.
4 , 10 , 15 , 40 , 617 , 139 , 4839 , 5966 , 56034 , 30730 , 999146 , 781849 , 6210145 , 9626781 , 63314708 , 19247157 , 719633886 , 989830879 , 1909308952 , 447388828
n×2
56837290
n×3
85255935
n×4
113674580
n×5
142093225
n÷2
14209322.5
n÷3
9472881.6666667
n÷3
7104661.25
n÷5
5683729
n2
807619383636025
n3
2.2951448558671E+22
n4
6.5224906882463E+29
n5
1.8536034738508E+37
2 √n
5330.914086721
3 √n
305.16481283215
4 √n
73.013109005993
5 √n
30.954277623659
1 , 5 , 17 , 85 , 367 , 911 , 1835 , 4555 , 6239 , 15487 , 31195 , 77435 , 334337 , 1671685 , 5683729 , 28418645
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28418644
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28418645 can be divided by 16 positive divisors.
The sum of these divisors (counting 28418645) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101100011010001001010101
3
Ternary
1222110211001102
4
Quaternary
1230122021111
5
Quinary
24233344040
6
Senary
2453035445
8
Octal
154321125
10
Decimal
28418645
12
Duodecimal
9625b85
16
Hexadecimal
1b1a255
20
Vigesimal
8hc6c5
36
Base36
gx3yt
md5
cbc1fc7c4cd95b3f5c230766b9bb6da3
sha1
8b61bc2b9a73e0bdf46a1feebaa5cdd8ee5fc952
sha256
4936759e807d09d91380dd6764d683e01185d487ee057ca190ac80513dc813d6
sha512
a3a65c65fef925bcd901b9412a0c72cd6f0f48499da4a10aebb1e85a1db86f6ba4fc2034b4fd352feb16e9ecd988bb45213f95bb23ac9e2fb2236d1554c844e3
ripemd-160
cfaebf5d3a80040cf751eb237c26a4554c845789
Diameter
56837290
Circumference
178559612.71395
Area
2.5372111225277E+15
Volume
9.613880290822E+22
Surface area
1.0148844490111E+16
Circumference
178559612.71395
Perimeter
113674580
Area
807619383636025
Diagonal
40190033.183266
Surface area
4845716301816150
Volume
2.2951448558671E+22
Space diagonal
49222537.022263
Perimeter
85255935
Area
3.4970945140876E+14
Altitude
24611268.511132
Surface area
3.4970945140876E+14
Volume
2.7048541523151E+21
Height
13396677.727755