1661520389 is an odd 10-digits composite number following 1661520388
and preceding 1661520390 . In scientific notation, it is written as 1.661520389 × 10^9.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 1661395500 positive integers (up to 1661520389) that are relatively prime to 1661520389.
1661520389 has 4 divisors, whose sum is 1661645280
The reverse of 1661520389 is 9830251661
Previous prime number is 15139
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 41
Digital Root 5
Name
one billion six hundred sixty-one million five hundred twenty thousand three hundred eighty-nine
Scientific notation
1.661520389 × 10^9
Engineering notation
1.661520389 × 10^9
Prime Factorization
15139 × 109751
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1661520389
Product of the distinct prime numbers
The prime factorization of 1661520389 is 15139 × 109751.
Since it has a total of 2 prime factors.
2 , 2 , 78 , 85 , 650 , 582 , 9434 , 4826 , 67155 , 99201 , 28516 , 483086 , 1914136 , 7558138 , 60301135 , 54416155 , 292064536 , 470524266 , 3219667937 , 2928300577
n×2
3323040778
n×3
4984561167
n×4
6646081556
n×5
8307601945
n÷2
830760194.5
n÷3
553840129.66667
n÷3
415380097.25
n÷5
332304077.8
n2
2760650003062711321
n3
4.5868762669816E+27
n4
7.6211884394101E+36
n5
1.2662759980491E+46
2 √n
40761.7515448
3 √n
1184.4095259475
4 √n
201.89539753248
5 √n
69.839502174828
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
-1661520388
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 1661520389 can be divided by 4 positive divisors.
The sum of these divisors (counting 1661520389) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100011000010001100101000000101
3
Ternary
11021210102222111012
4
Quaternary
1203002030220011
5
Quinary
11400322123024
6
Senary
432512052005
8
Octal
14302145005
10
Decimal
1661520389
12
Duodecimal
3a4534005
16
Hexadecimal
6308ca05
20
Vigesimal
15j4a0j9
36
Base36
rh85c5
md5
fd076f74439d1022727c6271b7760aab
sha1
950da411fe452e5609dbdbe09405d0c32b1c788d
sha256
d575959b39dd354710aadd0bae3a867c40e5b60a5e7c9b403e753399bb91b007
sha512
5c4859cbd2cedb02b6d311f2f29084389f32dcec9bff3485cb8839063703a9c5bc96f46d674b17f52df2039f7d92e293d6485cd732f6f118909ce8ad94ad9c29
ripemd-160
6318a1cbef69b771cf646c10cbf67d3015039e2c
Diameter
3323040778
Circumference
10439640495.744
Area
8.6728377687545E+18
Volume
1.92134623777E+28
Surface area
3.4691351075018E+19
Circumference
10439640495.744
Perimeter
6646081556
Area
2760650003062711321
Diagonal
2349744668.2832
Surface area
1.6563900018376E+19
Volume
4.5868762669816E+27
Space diagonal
2877837731.5596
Perimeter
4984561167
Area
1.1953965168049E+18
Altitude
1438918865.7798
Surface area
1.1953965168049E+18
Volume
5.4056855214106E+26
Height
783248222.76107