28697813 is an odd 8-digits composite number following 28697812
and preceding 28697814 . In scientific notation, it is written as 2.8697813 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 26810784 positive integers (up to 28697813) that are relatively prime to 28697813.
28697813 has 8 divisors, whose sum is 30643008
The reverse of 28697813 is 31879682
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-eight million six hundred ninety-seven thousand eight hundred thirteen
Scientific notation
2.8697813 × 10^7
Engineering notation
2.8697813 × 10^6
Prime Factorization
23 × 43 × 29017
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28697813
Product of the distinct prime numbers
The prime factorization of 28697813 is 23 × 43 × 29017.
Since it has a total of 3 prime factors.
10 , 8 , 35 , 52 , 915 , 96 , 1010 , 2842 , 70623 , 74344 , 817847 , 207514 , 1533356 , 8756139 , 42404656 , 34890043 , 928895976 , 131825981 , 7761599374 , 3041639835
n×2
57395626
n×3
86093439
n×4
114791252
n×5
143489065
n÷2
14348906.5
n÷3
9565937.6666667
n÷3
7174453.25
n÷5
5739562.6
n2
823564470982969
n3
2.3634499181713E+22
n4
6.7825843786546E+29
n5
1.9464533815535E+37
2 √n
5357.0339741316
3 √n
306.16081156831
4 √n
73.19176165479
5 √n
31.014855368772
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
-28697812
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 28697813 can be divided by 8 positive divisors.
The sum of these divisors (counting 28697813) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011110010011010101
3
Ternary
1222222222222222
4
Quaternary
1231132103111
5
Quinary
24321312223
6
Senary
2503032125
8
Octal
155362325
10
Decimal
28697813
12
Duodecimal
973b645
16
Hexadecimal
1b5e4d5
20
Vigesimal
8j74ad
36
Base36
h33dh
md5
de1a63e73bf9d1f320f6d95fbef06a68
sha1
afc70dfd3e85ecb689307ce054532c3ef54e5468
sha256
25628a62502c00d8f72fc14be62d7e4141aab3dc9298795103056077c40a1086
sha512
74031fea21acc114a7054634a04fac982c0f898a859d47e95655ea83a936266bd6b5e2196b09ede07a9c942bee410a46981b04299def7b7dd136e5b1634c871d
ripemd-160
5647be4f485cc6133be57947bc270b53d0a30d51
Diameter
57395626
Circumference
180313676.98979
Area
2.5873040917977E+15
Volume
9.8999958667392E+22
Surface area
1.0349216367191E+16
Circumference
180313676.98979
Perimeter
114791252
Area
823564470982969
Diagonal
40584836.355047
Surface area
4941386825897814
Volume
2.3634499181713E+22
Space diagonal
49706070.182111
Perimeter
86093439
Area
3.5661387676277E+14
Altitude
24853035.091055
Surface area
3.5661387676277E+14
Volume
2.7853524402229E+21
Height
13528278.785016