1645665628 is an even 10-digits composite number following 1645665627
and preceding 1645665629 . In scientific notation, it is written as 1.645665628 × 10^9.
The sum of its digits is 49. It has a total of 4 prime factors and 12 positive divisors.
There are 796289760 positive integers (up to 1645665628) that are relatively prime to 1645665628.
1645665628 has 12 divisors, whose sum is 2972815552
The reverse of 1645665628 is 8265665461
Previous prime number is 31
Is Prime? no Number parity even Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion six hundred forty-five million six hundred sixty-five thousand six hundred twenty-eight
Scientific notation
1.645665628 × 10^9
Engineering notation
1.645665628 × 10^9
Prime Factorization
2 × 2 × 31 × 13271497
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
822832814 Product of the distinct prime numbers
The prime factorization of 1645665628 is 2 × 2 × 31 × 13271497.
Since it has a total of 4 prime factors.
4 , 6 , 88 , 11 , 889 , 323 , 5325 , 7376 , 6414 , 26330 , 483681 , 76317 , 1018071 , 3652475 , 18596550 , 98886968 , 996664621 , 717991872 , 7450390301 , 2915302958
n×2
3291331256
n×3
4936996884
n×4
6582662512
n×5
8228328140
n÷2
822832814
n÷3
548555209.33333
n÷3
411416407
n÷5
329133125.6
n2
2708215359180634384
n3
4.4568169298252E+27
n4
7.3344304317019E+36
n5
1.2070020062409E+46
2 √n40566.80450812
3 √n1180.6301403088
4 √n201.41202672164
5 √n69.705704308135
1 , 2 , 4 , 31 , 62 , 124 , 13271497 , 26542994 , 53085988 , 411416407 , 822832814 , 1645665628
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1645665627 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1645665628 can be divided by 12 positive divisors.
The sum of these divisors (counting 1645665628) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100010000101101101110101011100
3
Ternary
11020200121110211211
4
Quaternary
1202011231311130
5
Quinary
11332242300003
6
Senary
431144154204
8
Octal
14205556534
10
Decimal
1645665628
12
Duodecimal
39b168964
16
Hexadecimal
6216dd5c
20
Vigesimal
15e58418
36
Base36
r7sbq4
md5
c4d2fc37f747213464f228f491054799
sha1
e4d5c3e6373d9d040498fc117b17b0943a4e8c69
sha256
6b849b886d1cbb87faf28a37ca0c304d6b1271006e092e0c05ec153436eca698
sha512
df7fbec4d4576a310cfe02a42482422bf7ef377d4702f021b5fecafc9f41ef0e2695ed7b80047bde251215b80640fd05c9d266180260b4828946de943704f7c0
ripemd-160
d42bce653c1b2a174feae834d16f48d3dc96ccf5
Diameter
3291331256
Circumference
10340022094.38
Area
8.5081094767409E+18
Volume
1.8668671100178E+28
Surface area
3.4032437906964E+19
Circumference
10340022094.38
Perimeter
6582662512
Area
2708215359180634384
Diagonal
2327322650.2488
Surface area
1.6249292155084E+19
Volume
4.4568169298252E+27
Space diagonal
2850376479.9657
Perimeter
4936996884
Area
1.1726916499848E+18
Altitude
1425188239.9829
Surface area
1.1726916499848E+18
Volume
5.2524091226441E+26
Height
775774216.74961