12561985 is an odd 8-digits composite number following 12561984
and preceding 12561986 . In scientific notation, it is written as 1.2561985 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors.
There are 9755136 positive integers (up to 12561985) that are relatively prime to 12561985.
12561985 has 16 divisors, whose sum is 15523200
The reverse of 12561985 is 58916521
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million five hundred sixty-one thousand nine hundred eighty-five
Scientific notation
1.2561985 × 10^7
Engineering notation
1.2561985 × 10^6
Prime Factorization
5 × 439 × 59 × 97
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12561985
Product of the distinct prime numbers
The prime factorization of 12561985 is 5 × 439 × 59 × 97.
Since it has a total of 4 prime factors.
8 , 6 , 31 , 29 , 344 , 995 , 3336 , 6018 , 48009 , 94824 , 478135 , 187164 , 6168408 , 4339035 , 2423416 , 32617042 , 718655945 , 321522463 , 8313353946 , 7572399274
n×2
25123970
n×3
37685955
n×4
50247940
n×5
62809925
n÷2
6280992.5
n÷3
4187328.3333333
n÷3
3140496.25
n÷5
2512397
n2
157803467140225
n3
1.9823247871635E+21
n4
2.4901934241476E+28
n5
3.1281772441241E+35
2 √n
3544.2890683464
3 √n
232.46242118205
4 √n
59.5339320753
5 √n
26.291275380968
1 , 5 , 59 , 97 , 295 , 439 , 485 , 2195 , 5723 , 25901 , 28615 , 42583 , 129505 , 212915 , 2512397 , 12561985
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
-12561984
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 12561985 can be divided by 16 positive divisors.
The sum of these divisors (counting 12561985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111111010111001000001
3
Ternary
212122012210201
4
Quaternary
233322321001
5
Quinary
11203440420
6
Senary
1125125201
8
Octal
57727101
10
Decimal
12561985
12
Duodecimal
4259801
16
Hexadecimal
bfae41
20
Vigesimal
3ia4j5
36
Base36
7h8w1
md5
a3c34e3aa6c0b8b764a3f3a2cdd4e2f6
sha1
4d8e2fbb66f3a1d848bc270a05e1f8cc879909a2
sha256
bb1ea415ef6cbb0b89fb828e8d4088e0e605d448acffbb9bd412882a47bdfd88
sha512
cf9a5104634833b94f4bb988a8ffb4c300fdb4e775c0e8bdeb47c8b19caa8331725eb01ae65507f852d820d47664b31e51958ab49b1db9b06153d57057817716
ripemd-160
f3d587db4bb0edee12fc7330243044fbfdc178d4
Diameter
25123970
Circumference
78929279.58101
Area
4.9575421307873E+14
Volume
8.3035426511757E+21
Surface area
1.9830168523149E+15
Circumference
78929279.58101
Perimeter
50247940
Area
157803467140225
Diagonal
17765329.557327
Surface area
946820802841350
Volume
1.9823247871635E+21
Space diagonal
21757996.263918
Perimeter
37685955
Area
68330905674349
Altitude
10878998.131959
Surface area
68330905674349
Volume
2.3361921658625E+20
Height
5921776.5191091