1989815 is an odd 7-digits composite number following 1989814
and preceding 1989816 . In scientific notation, it is written as 1.989815 × 10^6.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 1591848 positive integers (up to 1989815) that are relatively prime to 1989815.
1989815 has 4 divisors, whose sum is 2387784
The reverse of 1989815 is 5189891
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 41
Digital Root 5
Name
one million nine hundred eighty-nine thousand eight hundred fifteen
Scientific notation
1.989815 × 10^6
Engineering notation
1.989815 × 10^6
Prime Factorization
5 × 397963
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1989815
Product of the distinct prime numbers
The prime factorization of 1989815 is 5 × 397963.
Since it has a total of 2 prime factors.
1 , 3 , 29 , 3 , 359 , 267 , 6499 , 3050 , 26491 , 92430 , 998557 , 890987 , 4675390 , 8641417 , 33941430 , 21633034 , 639845034 , 127122651 , 3910194131 , 3516672060
n×2
3979630
n×3
5969445
n×4
7959260
n×5
9949075
n÷2
994907.5
n÷3
663271.66666667
n÷3
497453.75
n÷5
397963
n2
3959363734225
n3
7878401348816918375
n4
1.5676561179896E+25
n5
3.1193456584175E+31
2 √n
1410.6080249311
3 √n
125.77786931361
4 √n
37.558062049726
5 √n
18.187061697067
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
-1989814
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 1989815 can be divided by 4 positive divisors.
The sum of these divisors (counting 1989815) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100101110010110111
3
Ternary
10202002111212
4
Quaternary
13211302313
5
Quinary
1002133230
6
Senary
110352035
8
Octal
7456267
10
Decimal
1989815
12
Duodecimal
7bb61b
16
Hexadecimal
1e5cb7
20
Vigesimal
c8eaf
36
Base36
16ncn
md5
15e4bec56e1a96229d02e04d86cfe375
sha1
3fa79c8b61f9042decb41a2ebd90f5439090bb24
sha256
86996e32aec10b43ba2a3efe6dbe830234709fa24e1df74e1eb6d106d74e9b8c
sha512
6fba3cc928c2ab81c3c04d4b0a24fdbfe13f2e6253340d4d55a1c8edd6637d1e540f923235736e54757374018115e9d3da546c06836f27f244789f657003bd02
ripemd-160
96abd363d1a1bbba38a8e7f9aee4477317b01062
Diameter
3979630
Circumference
12502376.372006
Area
12438708020331
Volume
3.30009703993E+19
Surface area
49754832081324
Circumference
12502376.372006
Perimeter
7959260
Area
3959363734225
Diagonal
2814023.3596134
Surface area
23756182405350
Volume
7878401348816918375
Space diagonal
3446460.6776627
Perimeter
5969445
Area
1714454788330.8
Altitude
1723230.3388313
Surface area
1714454788330.8
Volume
9.2847850310961E+17
Height
938007.78653781