12561916 is an even 8-digits composite number following 12561915
and preceding 12561917 . In scientific notation, it is written as 1.2561916 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 6272640 positive integers (up to 12561916) that are relatively prime to 12561916.
12561916 has 12 divisors, whose sum is 22012480
The reverse of 12561916 is 61916521
Previous prime number is 991
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million five hundred sixty-one thousand nine hundred sixteen
Scientific notation
1.2561916 × 10^7
Engineering notation
1.2561916 × 10^6
Prime Factorization
2 × 2 × 991 × 3169
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6280958
Product of the distinct prime numbers
The prime factorization of 12561916 is 2 × 2 × 991 × 3169.
Since it has a total of 4 prime factors.
1 , 4 , 41 , 23 , 633 , 781 , 7655 , 6500 , 78297 , 44541 , 209119 , 208484 , 4444393 , 3347694 , 63284522 , 86581147 , 270925777 , 672713669 , 3065061717 , 8401017859
n×2
25123832
n×3
37685748
n×4
50247664
n×5
62809580
n÷2
6280958
n÷3
4187305.3333333
n÷3
3140479
n÷5
2512383.2
n2
157801733591056
n3
1.9822921220252E+21
n4
2.4901387124343E+28
n5
3.1280913333947E+35
2 √n
3544.279334364
3 √n
232.46199556098
4 √n
59.533850323694
5 √n
26.291246498558
1 , 2 , 4 , 991 , 1982 , 3169 , 3964 , 6338 , 12676 , 3140479 , 6280958 , 12561916
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
-12561915
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 12561916 can be divided by 12 positive divisors.
The sum of these divisors (counting 12561916) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101111111010110111111100
3
Ternary
212122012201011
4
Quaternary
233322313330
5
Quinary
11203440131
6
Senary
1125125004
8
Octal
57726774
10
Decimal
12561916
12
Duodecimal
4259764
16
Hexadecimal
bfadfc
20
Vigesimal
3ia4fg
36
Base36
7h8u4
md5
45aa1ff21b47c2217fa0dadcb5126328
sha1
ef92eb7270833a573d14aa95427e1fea2c39748f
sha256
99ab31ce90786d29cf26a0a2cbe7522fa8556eb32f50c0450c5462f399776e38
sha512
52a187ce23a73e7f45cd88794488f156dfa12550abe89518cb6a2f10803830f67acd4b3c7f507dd5ac41d1c6ad3f023ce68dc20b47c2530f0e4ba43bac490b23
ripemd-160
f0dbeda712c49ea30ef09224ad3f87a04688f531
Diameter
25123832
Circumference
78928846.041224
Area
4.957487669734E+14
Volume
8.3034058237645E+21
Surface area
1.9829950678936E+15
Circumference
78928846.041224
Perimeter
50247664
Area
157801733591056
Diagonal
17765231.976592
Surface area
946810401546336
Volume
1.9822921220252E+21
Space diagonal
21757876.752412
Perimeter
37685748
Area
68330155025539
Altitude
10878938.376206
Surface area
68330155025539
Volume
2.3361536696278E+20
Height
5921743.9921972