1661505897 is an odd 10-digits composite number following 1661505896
and preceding 1661505898 . In scientific notation, it is written as 1.661505897 × 10^9.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 1042513472 positive integers (up to 1661505897) that are relatively prime to 1661505897.
1661505897 has 8 divisors, whose sum is 2345655456
The reverse of 1661505897 is 7985051661
Previous prime number is 17
Is Prime? no Number parity odd Number length 10 Sum of Digits 48 Digital Root 3
Name
one billion six hundred sixty-one million five hundred five thousand eight hundred ninety-seven
Scientific notation
1.661505897 × 10^9
Engineering notation
1.661505897 × 10^9
Prime Factorization
3 × 17 × 32578547
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1661505897 Product of the distinct prime numbers
The prime factorization of 1661505897 is 3 × 17 × 32578547.
Since it has a total of 3 prime factors.
5 , 6 , 27 , 60 , 876 , 788 , 5977 , 3716 , 31458 , 73447 , 479523 , 917079 , 5498923 , 2857127 , 71448858 , 41630489 , 98613285 , 845322587 , 8295526105 , 749600135
n×2
3323011794
n×3
4984517691
n×4
6646023588
n×5
8307529485
n÷2
830752948.5
n÷3
553835299
n÷3
415376474.25
n÷5
332301179.4
n2
2760601845765774609
n3
4.5867562460089E+27
n4
7.6209225508454E+36
n5
1.266220775881E+46
2 √n40761.573779725
3 √n1184.4060824121
4 √n201.89495729147
5 √n69.839380344533
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
-1661505896 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 1661505897 can be divided by 8 positive divisors.
The sum of these divisors (counting 1661505897) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011000010001001000101101001
3
Ternary
11021210102020121110
4
Quaternary
1203002021011221
5
Quinary
11400321142042
6
Senary
432511500533
8
Octal
14302110551
10
Decimal
1661505897
12
Duodecimal
3a4527749
16
Hexadecimal
63089169
20
Vigesimal
15j484eh
36
Base36
rh7u5l
md5
5e6318785a29c3ca644f560610f2f898
sha1
abc7e0505ef4b1e854273fca51235f6d81fb97a9
sha256
0871c9b9053d63246c3fb121ef8f5b02cf9563f36a30502661485d1f6224a272
sha512
a87689670abc37ca5e1b606f818a3f27b29529b771cf5eceb768fcfce541ef6fb6a9d763ebf62b7f7b83e2fd85efdd8300e9ab416587fe6dddde230f76c09c5f
ripemd-160
f7272e82f727278aab681dad0acea42662d45aa9
Diameter
3323011794
Circumference
10439549439.823
Area
8.6726864781442E+18
Volume
1.9212959635025E+28
Surface area
3.4690745912577E+19
Circumference
10439549439.823
Perimeter
6646023588
Area
2760601845765774609
Diagonal
2349724173.5003
Surface area
1.6563611074595E+19
Volume
4.5867562460089E+27
Space diagonal
2877812630.6793
Perimeter
4984517691
Area
1.1953756640837E+18
Altitude
1438906315.3397
Surface area
1.1953756640837E+18
Volume
5.4055440753378E+26
Height
783241391.16676