1660981 is an odd 7-digits composite number following 1660980
and preceding 1660982 . In scientific notation, it is written as 1.660981 × 10^6.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 1423692 positive integers (up to 1660981) that are relatively prime to 1660981.
1660981 has 4 divisors, whose sum is 1898272
The reverse of 1660981 is 1890661
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 31
Digital Root 4
Name
one million six hundred sixty thousand nine hundred eighty-one
Scientific notation
1.660981 × 10^6
Engineering notation
1.660981 × 10^6
Prime Factorization
7 × 237283
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1660981
Product of the distinct prime numbers
The prime factorization of 1660981 is 7 × 237283.
Since it has a total of 2 prime factors.
10 , 1 , 26 , 58 , 300 , 250 , 6881 , 3269 , 21301 , 86481 , 336898 , 388867 , 8051642 , 3183153 , 43046647 , 99167712 , 566763655 , 452255744 , 4179622617 , 8190101424
n×2
3321962
n×3
4982943
n×4
6643924
n×5
8304905
n÷2
830490.5
n÷3
553660.33333333
n÷3
415245.25
n÷5
332196.2
n2
2758857882361
n3
4582410524301856141
n4
7.6112968150654E+24
n5
1.2642219395184E+31
2 √n
1288.7905182767
3 √n
118.42813448313
4 √n
35.899728665781
5 √n
17.541750631689
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
-1660980
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 1660981 can be divided by 4 positive divisors.
The sum of these divisors (counting 1660981) is 1, the average is 0.25.
Base
System
Value
2
Binary
110010101100000110101
3
Ternary
10010101102211
4
Quaternary
12111200311
5
Quinary
411122411
6
Senary
55333421
8
Octal
6254065
10
Decimal
1660981
12
Duodecimal
681271
16
Hexadecimal
195835
20
Vigesimal
a7c91
36
Base36
zlmd
md5
ef0143a8f5a9215635bd760fbcbb24e2
sha1
7ad2c0c5e6db544b04a79356d7f11914626b96dd
sha256
45133968e22f67d89c65db4771e9197955cd1d483d029b8f8edc2d76d613b2cb
sha512
62ec674416fdad6228598f0447a62c91862b310a81850b6a62b00cbb7797fb1ca52ef8f5984ffb8b66a24dc84d89ea2872b9ad5b48e793e2d35ca09af3becfd9
ripemd-160
28d7aae920a6ae617af1eb0a009d8992ee2c1bc4
Diameter
3321962
Circumference
10436251.414704
Area
8667207655523.6
Volume
1.9194756318506E+19
Surface area
34668830622094
Circumference
10436251.414704
Perimeter
6643924
Area
2758857882361
Diagonal
2348981.857044
Surface area
16553147294166
Volume
4582410524301856141
Space diagonal
2876903.4824066
Perimeter
4982943
Area
1194620505777.8
Altitude
1438451.7412033
Surface area
1194620505777.8
Volume
5.4004225931907E+17
Height
782993.95234801