1661520390 is an even 10-digits composite number following 1661520389
and preceding 1661520391 . In scientific notation, it is written as 1.661520390 × 10^9.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 443072096 positive integers (up to 1661520390) that are relatively prime to 1661520390.
1661520390 has 8 divisors, whose sum is 2658432672
The reverse of 1661520390 is 0930251661
Previous prime number is 15
Is Prime? no
Number parity even
Number length 10
Sum of Digits 33
Digital Root 6
Name
one billion six hundred sixty-one million five hundred twenty thousand three hundred ninety
Scientific notation
1.661520390 × 10^9
Engineering notation
1.661520390 × 10^9
Prime Factorization
2 × 15 × 55384013
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1661520390
Product of the distinct prime numbers
The prime factorization of 1661520390 is 2 × 15 × 55384013.
Since it has a total of 3 prime factors.
9 , 7 , 23 , 25 , 258 , 229 , 5490 , 9707 , 98558 , 33068 , 47494 , 587608 , 478935 , 2404263 , 55097668 , 71146305 , 28341237 , 289451167 , 5909023068 , 3828307940
n×2
3323040780
n×3
4984561170
n×4
6646081560
n×5
8307601950
n÷2
830760195
n÷3
553840130
n÷3
415380097.5
n÷5
332304078
n2
2760650006385752100
n3
4.5868762752636E+27
n4
7.6211884577577E+36
n5
1.2662760018597E+46
2 √n
40761.751557066
3 √n
1184.4095261851
4 √n
201.89539756286
5 √n
69.839502183235
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
-1661520389
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 1661520390 can be divided by 8 positive divisors.
The sum of these divisors (counting 1661520390) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011000010001100101000000110
3
Ternary
11021210102222111020
4
Quaternary
1203002030220012
5
Quinary
11400322123030
6
Senary
432512052010
8
Octal
14302145006
10
Decimal
1661520390
12
Duodecimal
3a4534006
16
Hexadecimal
6308ca06
20
Vigesimal
15j4a0ja
36
Base36
rh85c6
md5
f1ffee86a870785a3ac43b621f27bb7d
sha1
6c8f3686c9759373ce62fd78d67a6c7ff0193df1
sha256
86e9c451db01b639a0efac9d7af33a2844710f6993c4f604497a7916e94e6512
sha512
9c53207f45ebcc6ebcdbbb28b3022321faaf3adffd57392a8cecca98557bbab043391d433f5327e2849f3525d61e59d7b9c58c665fc11d9fa3915db3bd7b00db
ripemd-160
bd8ecbc1b4c5baec1e1ffec1d971563fa68477be
Diameter
3323040780
Circumference
10439640502.027
Area
8.6728377791941E+18
Volume
1.9213462412391E+28
Surface area
3.4691351116776E+19
Circumference
10439640502.027
Perimeter
6646081560
Area
2760650006385752100
Diagonal
2349744669.6974
Surface area
1.6563900038315E+19
Volume
4.5868762752636E+27
Space diagonal
2877837733.2917
Perimeter
4984561170
Area
1.1953965182439E+18
Altitude
1438918866.6458
Surface area
1.1953965182439E+18
Volume
5.4056855311709E+26
Height
783248223.23248