28687211 is an odd 8-digits composite number following 28687210
and preceding 28687212 . In scientific notation, it is written as 2.8687211 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 23142528 positive integers (up to 28687211) that are relatively prime to 28687211.
28687211 has 8 divisors, whose sum is 34714080
The reverse of 28687211 is 11278682
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-eight million six hundred eighty-seven thousand two hundred eleven
Scientific notation
2.8687211 × 10^7
Engineering notation
2.8687211 × 10^6
Prime Factorization
17 × 7 × 241069
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28687211
Product of the distinct prime numbers
The prime factorization of 28687211 is 17 × 7 × 241069.
Since it has a total of 3 prime factors.
4 , 1 , 81 , 15 , 794 , 299 , 1939 , 487 , 43527 , 20371 , 111092 , 506210 , 7999349 , 9481512 , 69574731 , 61204273 , 15451739 , 650574535 , 3373277847 , 5603912358
n×2
57374422
n×3
86061633
n×4
114748844
n×5
143436055
n÷2
14343605.5
n÷3
9562403.6666667
n÷3
7171802.75
n÷5
5737442.2
n2
822956074958521
n3
2.3608314566067E+22
n4
6.7725670131113E+29
n5
1.9428605891677E+37
2 √n
5356.0443426096
3 √n
306.12310466795
4 √n
73.185000803509
5 √n
31.012563430369
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
-28687210
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 28687211 can be divided by 8 positive divisors.
The sum of these divisors (counting 28687211) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101101011011101101101011
3
Ternary
1222222110110022
4
Quaternary
1231123231223
5
Quinary
24320442321
6
Senary
2502511055
8
Octal
155335553
10
Decimal
28687211
12
Duodecimal
973548b
16
Hexadecimal
1b5bb6b
20
Vigesimal
8j5i0b
36
Base36
h2v6z
md5
f6a91d8a69eb2d09c1a87fdc81d0fc62
sha1
1cb57898f8ff2228c2e06ce04fdba220fabc084b
sha256
67b12b15e2dfd26f58603ac60c5a1f61529d150d43bce102c90181eb57f925b2
sha512
6b345dc4bfa6e6ff8c5e1b58af6abbc889de16609ddf3ab5b93b980954d90eebb8998484622c51fa537d8b71a44a43dca592f6caf31d87e8512a6e0e01d8779d
ripemd-160
95b7cd81ae77c8a342df62fa4ecafbe7d89c6b5c
Diameter
57374422
Circumference
180247062.65916
Area
2.5853927593168E+15
Volume
9.8890276805857E+22
Surface area
1.0341571037267E+16
Circumference
180247062.65916
Perimeter
114748844
Area
822956074958521
Diagonal
40569842.862859
Surface area
4937736449751126
Volume
2.3608314566067E+22
Space diagonal
49687706.979449
Perimeter
86061633
Area
3.563504335564E+14
Altitude
24843853.489724
Surface area
3.563504335564E+14
Volume
2.7822665536752E+21
Height
13523280.954286