1645121709 is an odd 10-digits composite number following 1645121708
and preceding 1645121710 . In scientific notation, it is written as 1.645121709 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 854608320 positive integers (up to 1645121709) that are relatively prime to 1645121709.
1645121709 has 16 divisors, whose sum is 2278957440
The reverse of 1645121709 is 9071215461
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 36
Digital Root 9
Name
one billion six hundred forty-five million one hundred twenty-one thousand seven hundred nine
Scientific notation
1.645121709 × 10^9
Engineering notation
1.645121709 × 10^9
Prime Factorization
9 × 7 × 11 × 2373913
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1645121709
Product of the distinct prime numbers
The prime factorization of 1645121709 is 9 × 7 × 11 × 2373913.
Since it has a total of 4 prime factors.
3 , 7 , 95 , 40 , 161 , 219 , 9122 , 1305 , 29020 , 60920 , 534969 , 614523 , 3249819 , 8217131 , 59474830 , 68865768 , 834182643 , 632250599 , 1307689881 , 6815259268
n×2
3290243418
n×3
4935365127
n×4
6580486836
n×5
8225608545
n÷2
822560854.5
n÷3
548373903
n÷3
411280427.25
n÷5
329024341.8
n2
2706425437423080681
n3
4.4523992408945E+27
n4
7.3247386483307E+36
n5
1.205008656312E+46
2 √n
40560.099962895
3 √n
1180.5000535491
4 √n
201.39538217868
5 √n
69.701095927205
1 , 7 , 9 , 11 , 63 , 77 , 99 , 693 , 2373913 , 16617391 , 21365217 , 26113043 , 149556519 , 182791301 , 235017387 , 1645121709
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
-1645121708
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 1645121709 can be divided by 16 positive divisors.
The sum of these divisors (counting 1645121709) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100010000011101001000010101101
3
Ternary
11020122120211201200
4
Quaternary
1202003221002231
5
Quinary
11332122343314
6
Senary
431124400113
8
Octal
14203510255
10
Decimal
1645121709
12
Duodecimal
39ab46039
16
Hexadecimal
620e90ad
20
Vigesimal
15e20459
36
Base36
r7go19
md5
cc17bc1d95c66ca88a231e6337cda9c4
sha1
5ea9de8a6aab0792da2bebf1248b08bf69e6972a
sha256
b3d39adcc7a4de7e2ca96dffe520920e703cff1b652de700d87d9ddc4dc49317
sha512
0ae15a907c41990fa3aaba1b9caf8879674ce0a71b54b7a2caa4ab76a96a76771149a5f8b19afecba4b5ab7132b3a33a0eda2d4723a2e3fac82ab59d2927408a
ripemd-160
4ee1cda9d0855c36d1bf46a38ab4319108b1be9a
Diameter
3290243418
Circumference
10336604550.511
Area
8.5024862716969E+18
Volume
1.8650166328057E+28
Surface area
3.4009945086788E+19
Circumference
10336604550.511
Perimeter
6580486836
Area
2706425437423080681
Diagonal
2326553432.6222
Surface area
1.6238552624538E+19
Volume
4.4523992408945E+27
Space diagonal
2849434384.6225
Perimeter
4935365127
Area
1.1719165911284E+18
Altitude
1424717192.3113
Surface area
1.1719165911284E+18
Volume
5.2472028263106E+26
Height
775517810.87407