208889745 is an odd 9-digits composite number following 208889744
and preceding 208889746 . In scientific notation, it is written as 2.08889745 × 10^8.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 111265920 positive integers (up to 208889745) that are relatively prime to 208889745.
208889745 has 8 divisors, whose sum is 223099648
The reverse of 208889745 is 547988802
Previous prime number is 823
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 51
Digital Root 6
Name
two hundred eight million eight hundred eighty-nine thousand seven hundred forty-five
Scientific notation
2.08889745 × 10^8
Engineering notation
2.08889745 × 10^6
Prime Factorization
15 × 823 × 16921
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
208889745
Product of the distinct prime numbers
The prime factorization of 208889745 is 15 × 823 × 16921.
Since it has a total of 3 prime factors.
1 , 9 , 61 , 70 , 790 , 251 , 8692 , 7610 , 36500 , 86019 , 710 , 442456 , 1316217 , 8407774 , 54446854 , 5421813 , 424298450 , 765854117 , 5757474046 , 8212955624
n×2
417779490
n×3
626669235
n×4
835558980
n×5
1044448725
n÷2
104444872.5
n÷3
69629915
n÷3
52222436.25
n÷5
41777949
n2
43634925566165025
n3
9.1148884746102E+24
n4
1.9040067291648E+33
n5
3.9772748013351E+41
2 √n
14453.018542851
3 √n
593.34284078384
4 √n
120.22070762914
5 √n
46.129996743215
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
-208889744
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 208889745 can be divided by 8 positive divisors.
The sum of these divisors (counting 208889745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011100110110011110010001
3
Ternary
112120001200212020
4
Quaternary
30130312132101
5
Quinary
411433432440
6
Senary
32421122053
8
Octal
1434663621
10
Decimal
208889745
12
Duodecimal
59b59329
16
Hexadecimal
c736791
20
Vigesimal
355b475
36
Base36
3gd8cx
md5
b082e9f26cfb7c7d1519ef7e911d22f9
sha1
be788c91d9e8a64ee672a7156793ec0edbc646c2
sha256
103510c7e9f4de35dced6a241eb0810d1068f4370944e7d572b6e181e5741978
sha512
d8127f97451d891e6f9974ca0270b5f8f8feb670d30b46eeec6617aee87354a9560181cf330e951390b2caf8bd55b097efbe9bcc27c4cc157046c4d15f405512
ripemd-160
edc3bb81cd47bdcdb58fe4dd1da5b10e83d01432
Diameter
417779490
Circumference
1312492976.6045
Area
1.370831615986E+17
Volume
3.8180355560168E+25
Surface area
5.4833264639441E+17
Circumference
1312492976.6045
Perimeter
835558980
Area
43634925566165025
Diagonal
295414710.41966
Surface area
261809553396990150
Volume
9.1148884746102E+24
Space diagonal
361807651.52011
Perimeter
626669235
Area
1.8894477016271E+16
Altitude
180903825.76005
Surface area
1.8894477016271E+16
Volume
1.0741999083593E+24
Height
98471570.139886