1680490781 is an odd 10-digits composite number following 1680490780
and preceding 1680490782 . In scientific notation, it is written as 1.680490781 × 10^9.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 1643361408 positive integers (up to 1680490781) that are relatively prime to 1680490781.
1680490781 has 8 divisors, whose sum is 1717680000
The reverse of 1680490781 is 1870940861
Previous prime number is 1249
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 44
Digital Root 8
Name
one billion six hundred eighty million four hundred ninety thousand seven hundred eighty-one
Scientific notation
1.680490781 × 10^9
Engineering notation
1.680490781 × 10^9
Prime Factorization
47 × 1249 × 28627
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1680490781
Product of the distinct prime numbers
The prime factorization of 1680490781 is 47 × 1249 × 28627.
Since it has a total of 3 prime factors.
7 , 2 , 51 , 31 , 6 , 420 , 9867 , 2822 , 14863 , 35631 , 955573 , 975253 , 945329 , 631197 , 63029789 , 44992545 , 463627853 , 281865072 , 7399262257 , 5259920801
n×2
3360981562
n×3
5041472343
n×4
6721963124
n×5
8402453905
n÷2
840245390.5
n÷3
560163593.66667
n÷3
420122695.25
n÷5
336098156.2
n2
2824049265025989961
n3
4.745788754966E+27
n4
7.9752542512938E+36
n5
1.340234124543E+46
2 √n
40993.789541832
3 √n
1188.9001397566
4 √n
202.46923109903
5 √n
69.998257147701
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
-1680490780
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 1680490781 can be divided by 8 positive divisors.
The sum of these divisors (counting 1680490781) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100100001010100100000100011101
3
Ternary
11100010010202222022
4
Quaternary
1210022210010131
5
Quinary
11420201201111
6
Senary
434430425525
8
Octal
14412440435
10
Decimal
1680490781
12
Duodecimal
3aa9622a5
16
Hexadecimal
642a411d
20
Vigesimal
165316j1
36
Base36
rsiqzh
md5
648572614cf39a4e07b892e6a44e6cd5
sha1
d573a320a4273acbbccce4edd40e8cf33cd36e22
sha256
20d7a62e9170f7a05f77330dfa2735b73d39139b30f67d05e53dc89015aa3745
sha512
587618d20f8e4188e547393ad6b25f911af6b2cbb9a9742fe74d0ffaef06536e301e74480e603a09715be893d747efb877bebdff181571eabdce3161e3befd14
ripemd-160
d63106a1f0c645b7c9b3fa5755eed5db29671741
Diameter
3360981562
Circumference
10558834984.03
Area
8.8720124243813E+18
Volume
1.9879113450787E+28
Surface area
3.5488049697525E+19
Circumference
10558834984.03
Perimeter
6721963124
Area
2824049265025989961
Diagonal
2376572853.9332
Surface area
1.6944295590156E+19
Volume
4.745788754966E+27
Space diagonal
2910695414.3431
Perimeter
5041472343
Area
1.2228492025256E+18
Altitude
1455347707.1716
Surface area
1.2228492025256E+18
Volume
5.5929656845255E+26
Height
792190951.31105