1640958021 is an odd 10-digits composite number following 1640958020
and preceding 1640958022 . In scientific notation, it is written as 1.640958021 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 1067489280 positive integers (up to 1640958021) that are relatively prime to 1640958021.
1640958021 has 16 divisors, whose sum is 1701928368
The reverse of 1640958021 is 1208590461
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 36
Digital Root 9
Name
one billion six hundred forty million nine hundred fifty-eight thousand twenty-one
Scientific notation
1.640958021 × 10^9
Engineering notation
1.640958021 × 10^9
Prime Factorization
81 × 97 × 73 × 2861
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1640958021
Product of the distinct prime numbers
The prime factorization of 1640958021 is 81 × 97 × 73 × 2861.
Since it has a total of 4 prime factors.
9 , 7 , 97 , 38 , 710 , 534 , 8189 , 1681 , 23235 , 39754 , 346711 , 417641 , 7205617 , 7828939 , 79334057 , 48329726 , 857993735 , 738344375 , 707907634 , 9467949202
n×2
3281916042
n×3
4922874063
n×4
6563832084
n×5
8204790105
n÷2
820479010.5
n÷3
546986007
n÷3
410239505.25
n÷5
328191604.2
n2
2692743226684236441
n3
4.4186785963209E+27
n4
7.2508660848538E+36
n5
1.1898366861138E+46
2 √n
40508.740056931
3 √n
1179.5032911364
4 √n
201.2678316496
5 √n
69.665778434741
1 , 73 , 81 , 97 , 2861 , 5913 , 7081 , 7857 , 208853 , 231741 , 277517 , 573561 , 16917093 , 20258741 , 22478877 , 1640958021
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1640958020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1640958021 can be divided by 16 positive divisors.
The sum of these divisors (counting 1640958021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100001110011110000100001000101
3
Ternary
11020100202022020000
4
Quaternary
1201303300201011
5
Quinary
11330041124041
6
Senary
430455231513
8
Octal
14163604105
10
Decimal
1640958021
12
Duodecimal
399678599
16
Hexadecimal
61cf0845
20
Vigesimal
15cfjf11
36
Base36
r4zfb9
md5
118b10bbaa4ecb778e5c591d0dca0463
sha1
684e311e2a17749f58909698aee56cc4b70c0ca7
sha256
8abafd0bbf2f90d5062f7e15e77ee9f26f4eb7578287dd40421ff00e3758666a
sha512
f9d39ea626d5616ba6dc0de04e8f6d5650ac0cd93f28a826984ccb5475b933b42188e6795a015387e945b84333052ad9bf116818c1fc850ae055d3c81a1a0f5f
ripemd-160
a55a17c31ce249dcc121355c70a7fa4e01dc6153
Diameter
3281916042
Circumference
10310443327.246
Area
8.4595023389549E+18
Volume
1.8508917622368E+28
Surface area
3.3838009355819E+19
Circumference
10310443327.246
Perimeter
6563832084
Area
2692743226684236441
Diagonal
2320665088.5831
Surface area
1.6156459360105E+19
Volume
4.4186785963209E+27
Space diagonal
2842222665.4597
Perimeter
4922874063
Area
1.1659920200885E+18
Altitude
1421111332.7298
Surface area
1.1659920200885E+18
Volume
5.2074626655706E+26
Height
773555029.5277