1640668857 is an odd 10-digits composite number following 1640668856
and preceding 1640668858 . In scientific notation, it is written as 1.640668857 × 10^9.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 1093779236 positive integers (up to 1640668857) that are relatively prime to 1640668857.
1640668857 has 4 divisors, whose sum is 2187558480
The reverse of 1640668857 is 7588660461
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
one billion six hundred forty million six hundred sixty-eight thousand eight hundred fifty-seven
Scientific notation
1.640668857 × 10^9
Engineering notation
1.640668857 × 10^9
Prime Factorization
3 × 546889619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1640668857
Product of the distinct prime numbers
The prime factorization of 1640668857 is 3 × 546889619.
Since it has a total of 2 prime factors.
4 , 5 , 61 , 42 , 949 , 329 , 89 , 8988 , 75951 , 61301 , 179807 , 318457 , 6854237 , 9704705 , 62229468 , 27006496 , 652131247 , 336233504 , 2368283931 , 8823036376
n×2
3281337714
n×3
4922006571
n×4
6562675428
n×5
8203344285
n÷2
820334428.5
n÷3
546889619
n÷3
410167214.25
n÷5
328133771.4
n2
2691794298329686449
n3
4.4163430747197E+27
n4
7.2457565445202E+36
n5
1.1887887107998E+46
2 √n
40505.170743993
3 √n
1179.4340043902
4 √n
201.2589643817
5 √n
69.663323008705
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
-1640668856
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 1640668857 can be divided by 4 positive divisors.
The sum of these divisors (counting 1640668857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100001110010101001111010111001
3
Ternary
11020100012121120020
4
Quaternary
1201302221322321
5
Quinary
11330002400412
6
Senary
430445121053
8
Octal
14162517271
10
Decimal
1640668857
12
Duodecimal
399559189
16
Hexadecimal
61ca9eb9
20
Vigesimal
15ce3c2h
36
Base36
r4t86x
md5
0a15831193225c804df4a726ad8fdeb4
sha1
acc5997f421e9435fea74da32ded8ea8bcedbed7
sha256
71776a44591e716e1bd79aa1890fd61b0deb04406312c9f74e40b96fb6675d98
sha512
6e960fa9d612e527c6d7b7b4150ca7c8ab8dd9d29ae81761e29c6b5180b4b295586fd6d95d91f8403051de1e1e7e05f86d61d27bc3c102bbd735d602a3dfa011
ripemd-160
a98dbe09bce55591af53e5234b9c79113764bc80
Diameter
3281337714
Circumference
10308626456.25
Area
8.4565211926074E+18
Volume
1.8499134612362E+28
Surface area
3.382608477043E+19
Circumference
10308626456.25
Perimeter
6562675428
Area
2691794298329686449
Diagonal
2320256148.9326
Surface area
1.6150765789978E+19
Volume
4.4163430747197E+27
Space diagonal
2841721818.72
Perimeter
4922006571
Area
1.1655811220578E+18
Altitude
1420860909.36
Surface area
1.1655811220578E+18
Volume
5.2047102269676E+26
Height
773418716.31085