12821887 is an odd 8-digits composite number following 12821886
and preceding 12821888 . In scientific notation, it is written as 1.2821887 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 11743680 positive integers (up to 12821887) that are relatively prime to 12821887.
12821887 has 8 divisors, whose sum is 13915440
The reverse of 12821887 is 78812821
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million eight hundred twenty-one thousand eight hundred eighty-seven
Scientific notation
1.2821887 × 10^7
Engineering notation
1.2821887 × 10^6
Prime Factorization
13 × 131 × 7529
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12821887
Product of the distinct prime numbers
The prime factorization of 12821887 is 13 × 131 × 7529.
Since it has a total of 3 prime factors.
5 , 5 , 90 , 53 , 706 , 770 , 5249 , 8245 , 95997 , 37998 , 717099 , 710216 , 1069769 , 7365263 , 42096292 , 20144433 , 308232770 , 836703978 , 4469250365 , 9889659138
n×2
25643774
n×3
38465661
n×4
51287548
n×5
64109435
n÷2
6410943.5
n÷3
4273962.3333333
n÷3
3205471.75
n÷5
2564377.4
n2
164400786240769
n3
2.1079283038903E+21
n4
2.7027618516583E+28
n5
3.4654507049874E+35
2 √n
3580.7662587776
3 √n
234.05467225217
4 √n
59.839504165539
5 √n
26.399177070714
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12821886
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12821887 can be divided by 8 positive divisors.
The sum of these divisors (counting 12821887) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111010010101111111
3
Ternary
220010102022201
4
Quaternary
300322111333
5
Quinary
11240300022
6
Senary
1134452331
8
Octal
60722577
10
Decimal
12821887
12
Duodecimal
43640a7
16
Hexadecimal
c3a57f
20
Vigesimal
402ee7
36
Base36
7mtfj
md5
25249ab621b4d8b52c81c3823f786ff2
sha1
e6a5177d4c8e2ae33e54820218189ec5a61461db
sha256
9390a03fda687a56f6b5acde23a879d3092e408fab0eee67145ef3d98d9e16d7
sha512
e3e01190bd7a3e2ff444452012734437846da1c13fb0a43dd8376ea06765b53ee994a6a4da95e8f7ea5fe82238b71a4c8aa61a2141f811924f14d9ccbcd05f90
ripemd-160
9eabb1490db8d3ba75c4133054494acc774fea06
Diameter
25643774
Circumference
80562292.008717
Area
5.1648030229839E+14
Volume
8.8296694317277E+21
Surface area
2.0659212091935E+15
Circumference
80562292.008717
Perimeter
51287548
Area
164400786240769
Diagonal
18132886.490615
Surface area
986404717444614
Volume
2.1079283038903E+21
Space diagonal
22208159.732907
Perimeter
38465661
Area
71187628643321
Altitude
11104079.866453
Surface area
71187628643321
Volume
2.4842173298931E+20
Height
6044295.4968718