1661505898 is an even 10-digits composite number following 1661505897
and preceding 1661505899 . In scientific notation, it is written as 1.661505898 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 766848864 positive integers (up to 1661505898) that are relatively prime to 1661505898.
1661505898 has 8 divisors, whose sum is 2683971108
The reverse of 1661505898 is 8985051661
Previous prime number is 13
Is Prime? no
Number parity even
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion six hundred sixty-one million five hundred five thousand eight hundred ninety-eight
Scientific notation
1.661505898 × 10^9
Engineering notation
1.661505898 × 10^9
Prime Factorization
2 × 13 × 63904073
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1661505898
Product of the distinct prime numbers
The prime factorization of 1661505898 is 2 × 13 × 63904073.
Since it has a total of 3 prime factors.
7 , 1 , 46 , 82 , 207 , 419 , 8471 , 5886 , 41441 , 97796 , 840260 , 156759 , 9291332 , 9378018 , 53871690 , 5703610 , 459034845 , 105256963 , 8056290205 , 5264364587
n×2
3323011796
n×3
4984517694
n×4
6646023592
n×5
8307529490
n÷2
830752949
n÷3
553835299.33333
n÷3
415376474.5
n÷5
332301179.6
n2
2760601849088786404
n3
4.5867562542907E+27
n4
7.6209225691924E+36
n5
1.2662207796915E+46
2 √n
40761.573791992
3 √n
1184.4060826498
4 √n
201.89495732185
5 √n
69.83938035294
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
-1661505897
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 1661505898 can be divided by 8 positive divisors.
The sum of these divisors (counting 1661505898) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100011000010001001000101101010
3
Ternary
11021210102020121111
4
Quaternary
1203002021011222
5
Quinary
11400321142043
6
Senary
432511500534
8
Octal
14302110552
10
Decimal
1661505898
12
Duodecimal
3a452774a
16
Hexadecimal
6308916a
20
Vigesimal
15j484ei
36
Base36
rh7u5m
md5
3ce85ee3786c6855773ef186846fca4d
sha1
a6133110765275c4efdec4d21ad06a5f4fef7993
sha256
3f0b983c960e0c9e60bda567b67f3b195f33f4358aa373e0235a983eba5d46a5
sha512
0ded507feeb380ffcd679f903ece3a484e816f2eb9fc3fcc9a47c781adc70559a3b98d184d4e0b2c915bc4e8d65cd0db1780e50be21ee2bde55c252974f7d311
ripemd-160
3a4082e62d8e9454e265537d0bc17dc7ecf87272
Diameter
3323011796
Circumference
10439549446.106
Area
8.6726864885837E+18
Volume
1.9212959669716E+28
Surface area
3.4690745954335E+19
Circumference
10439549446.106
Perimeter
6646023592
Area
2760601849088786404
Diagonal
2349724174.9145
Surface area
1.6563611094533E+19
Volume
4.5867562542907E+27
Space diagonal
2877812632.4114
Perimeter
4984517694
Area
1.1953756655226E+18
Altitude
1438906316.2057
Surface area
1.1953756655226E+18
Volume
5.405544085098E+26
Height
783241391.63816