12951985 is an odd 8-digits composite number following 12951984
and preceding 12951986 . In scientific notation, it is written as 1.2951985 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 10361584 positive integers (up to 12951985) that are relatively prime to 12951985.
12951985 has 4 divisors, whose sum is 15542388
The reverse of 12951985 is 58915921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twelve million nine hundred fifty-one thousand nine hundred eighty-five
Scientific notation
1.2951985 × 10^7
Engineering notation
1.2951985 × 10^6
Prime Factorization
5 × 2590397
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12951985
Product of the distinct prime numbers
The prime factorization of 12951985 is 5 × 2590397.
Since it has a total of 2 prime factors.
7 , 6 , 16 , 50 , 762 , 217 , 2176 , 9602 , 79326 , 36830 , 270613 , 837899 , 2056550 , 8193048 , 44698519 , 55153446 , 866290895 , 103575687 , 9943937961 , 5969217827
n×2
25903970
n×3
38855955
n×4
51807940
n×5
64759925
n÷2
6475992.5
n÷3
4317328.3333333
n÷3
3237996.25
n÷5
2590397
n2
167753915440225
n3
2.1727461964731E+21
n4
2.8141376145526E+28
n5
3.6448668171621E+35
2 √n
3598.8866333909
3 √n
234.84362616337
4 √n
59.990721227461
5 √n
26.452533103926
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
-12951984
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 12951985 can be divided by 4 positive divisors.
The sum of these divisors (counting 12951985) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001011010000110110001
3
Ternary
220101000210011
4
Quaternary
301122012301
5
Quinary
11303430420
6
Senary
1141334521
8
Octal
61320661
10
Decimal
12951985
12
Duodecimal
4407441
16
Hexadecimal
c5a1b1
20
Vigesimal
40ijj5
36
Base36
7pltd
md5
bd7d17c3b7511dfb26e1be2afff025ae
sha1
92378e5ccebf288e2188229ba0f9778811b65e56
sha256
3891f1a56f0bedba163e55f0f711e3ddfd37a5eb1de4107cf35dd94e75b82eb5
sha512
dc966dbadb97a0b6c04ac4695350f6777006ef57aa5c76292c873f741ae64723bcb6e00446475fdfe086e4f5adce46b0944ee42e3146159c8b14679ee57dd0f7
ripemd-160
d38a93f253665bb663de702e95fcc6f32856e579
Diameter
25903970
Circumference
81379721.85081
Area
5.2701446835793E+14
Volume
9.1011779852733E+21
Surface area
2.1080578734317E+15
Circumference
81379721.85081
Perimeter
51807940
Area
167753915440225
Diagonal
18316872.846653
Surface area
1006523492641350
Volume
2.1727461964731E+21
Space diagonal
22433496.07887
Perimeter
38855955
Area
72639576177771
Altitude
11216748.039435
Surface area
72639576177771
Volume
2.5606059488723E+20
Height
6105624.2822176