1818221285 is an odd 10-digits composite number following 1818221284
and preceding 1818221286 . In scientific notation, it is written as 1.818221285 × 10^9.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 1454577024 positive integers (up to 1818221285) that are relatively prime to 1818221285.
1818221285 has 4 divisors, whose sum is 2181865548
The reverse of 1818221285 is 5821228181
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion eight hundred eighteen million two hundred twenty-one thousand two hundred eighty-five
Scientific notation
1.818221285 × 10^9
Engineering notation
1.818221285 × 10^9
Prime Factorization
5 × 363644257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1818221285
Product of the distinct prime numbers
The prime factorization of 1818221285 is 5 × 363644257.
Since it has a total of 2 prime factors.
7 , 6 , 75 , 27 , 723 , 376 , 5613 , 2384 , 59766 , 90173 , 236899 , 772956 , 5929503 , 5795652 , 99162609 , 44853654 , 690298153 , 133956007 , 8546836506 , 3540072777
n×2
3636442570
n×3
5454663855
n×4
7272885140
n×5
9091106425
n÷2
909110642.5
n÷3
606073761.66667
n÷3
454555321.25
n÷5
363644257
n2
3305928641227051225
n3
6.0109098221702E+27
n4
1.0929164180885E+37
n5
1.9871638940945E+46
2 √n
42640.606058076
3 √n
1220.5312755982
4 √n
206.49601947271
5 √n
71.109782044477
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
-1818221284
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 1818221285 can be divided by 4 positive divisors.
The sum of these divisors (counting 1818221285) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010111111101101011100101
3
Ternary
11200201022012201002
4
Quaternary
1230113331223211
5
Quinary
12210431040120
6
Senary
500230443045
8
Octal
15427755345
10
Decimal
1818221285
12
Duodecimal
428b03485
16
Hexadecimal
6c5fdae5
20
Vigesimal
1883hd45
36
Base36
u2isit
md5
3f056289a0554b3b35217600f39761f6
sha1
d61daa20247f219a702817b7a48202fc8af415b8
sha256
b55fa7c0d67572798eac3d9bb730e0a131c8e8db4503361745ca3dadee16f22e
sha512
c8a6e841be4bfea3f09fc82aed5607580bd540f599b574a54a6f904fbbcd29c22f7c7eabc9a223c7c4c25ae66ab9046b167e11739c231054cdfa24ae935a74ce
ripemd-160
aead1a61a054097ac827ffb526ffca60d327a712
Diameter
3636442570
Circumference
11424221263.113
Area
1.0385881132571E+19
Volume
2.5178440184961E+28
Surface area
4.1543524530284E+19
Circumference
11424221263.113
Perimeter
7272885140
Area
3305928641227051225
Diagonal
2571353200.6424
Surface area
1.9835571847362E+19
Volume
6.0109098221702E+27
Space diagonal
3149251645.0232
Perimeter
5454663855
Area
1.4315090932006E+18
Altitude
1574625822.5116
Surface area
1.4315090932006E+18
Volume
7.0839251605956E+26
Height
857117733.54748