1661520397 is an odd 10-digits composite number following 1661520396
and preceding 1661520398 . In scientific notation, it is written as 1.661520397 × 10^9.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 1643880000 positive integers (up to 1661520397) that are relatively prime to 1661520397.
1661520397 has 8 divisors, whose sum is 1679184792
The reverse of 1661520397 is 7930251661
Previous prime number is 1597
Is Prime? no Number parity odd Number length 10 Sum of Digits 40 Digital Root 4
Name
one billion six hundred sixty-one million five hundred twenty thousand three hundred ninety-seven
Scientific notation
1.661520397 × 10^9
Engineering notation
1.661520397 × 10^9
Prime Factorization
101 × 1597 × 10301
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1661520397 Product of the distinct prime numbers
The prime factorization of 1661520397 is 101 × 1597 × 10301.
Since it has a total of 3 prime factors.
8 , 8 , 41 , 75 , 466 , 96 , 3059 , 8381 , 99976 , 90714 , 406812 , 641220 , 1651807 , 9797865 , 51761496 , 70106303 , 52161937 , 437604195 , 4188328754 , 5844559376
n×2
3323040794
n×3
4984561191
n×4
6646081588
n×5
8307601985
n÷2
830760198.5
n÷3
553840132.33333
n÷3
415380099.25
n÷5
332304079.4
n2
2760650029647037609
n3
4.5868763332372E+27
n4
7.6211885861902E+36
n5
1.2662760285339E+46
2 √n40761.751642931
3 √n1184.4095278484
4 √n201.89539777551
5 √n69.839502242082
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
-1661520396 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 1661520397 can be divided by 8 positive divisors.
The sum of these divisors (counting 1661520397) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011000010001100101000001101
3
Ternary
11021210102222111111
4
Quaternary
1203002030220031
5
Quinary
11400322123042
6
Senary
432512052021
8
Octal
14302145015
10
Decimal
1661520397
12
Duodecimal
3a4534011
16
Hexadecimal
6308ca0d
20
Vigesimal
15j4a0jh
36
Base36
rh85cd
md5
082dce67ddce28186207801ef0b77fbf
sha1
7b280c08d2e7347103c496bcdd626608d21d9aae
sha256
cbe7e194821910f07fd60b9be5c28b8dac25c61e3f19f3690e47f60197a70b2c
sha512
c123bb656d505638674da4358e91458cf92e0f386e3ef3d82c0d8a43f028dba307b21c3c381785cf8332758c23643ddb0d3977a612328a1f97b0f82157f8b6a6
ripemd-160
09f66eb1a47cf51de201303ea99e798119a73162
Diameter
3323040794
Circumference
10439640546.01
Area
8.6728378522716E+18
Volume
1.9213462655231E+28
Surface area
3.4691351409086E+19
Circumference
10439640546.01
Perimeter
6646081588
Area
2760650029647037609
Diagonal
2349744679.5969
Surface area
1.6563900177882E+19
Volume
4.5868763332372E+27
Space diagonal
2877837745.416
Perimeter
4984561191
Area
1.1953965283163E+18
Altitude
1438918872.708
Surface area
1.1953965283163E+18
Volume
5.4056855994935E+26
Height
783248226.53231