12912381 is an odd 8-digits composite number following 12912380
and preceding 12912382 . In scientific notation, it is written as 1.2912381 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 8155080 positive integers (up to 12912381) that are relatively prime to 12912381.
12912381 has 8 divisors, whose sum is 17518784
The reverse of 12912381 is 18321921
Previous prime number is 57
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twelve million nine hundred twelve thousand three hundred eighty-one
Scientific notation
1.2912381 × 10^7
Engineering notation
1.2912381 × 10^6
Prime Factorization
3 × 57 × 75511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12912381
Product of the distinct prime numbers
The prime factorization of 12912381 is 3 × 57 × 75511.
Since it has a total of 3 prime factors.
1 , 3 , 59 , 95 , 178 , 731 , 6610 , 8133 , 60387 , 71023 , 248399 , 366487 , 6193895 , 8048641 , 78770734 , 76998445 , 897778977 , 806975676 , 3097191806 , 8075553789
n×2
25824762
n×3
38737143
n×4
51649524
n×5
64561905
n÷2
6456190.5
n÷3
4304127
n÷3
3228095.25
n÷5
2582476.2
n2
166729583089161
n3
2.1528759008184E+21
n4
2.7798753877085E+28
n5
3.5894810138615E+35
2 √n
3593.3801635786
3 √n
234.60401699896
4 √n
59.944809313055
5 √n
26.436336206993
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
-12912380
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 12912381 can be divided by 8 positive divisors.
The sum of these divisors (counting 12912381) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010000011011111101
3
Ternary
220022000110100
4
Quaternary
301100123331
5
Quinary
11301144011
6
Senary
1140431313
8
Octal
61203375
10
Decimal
12912381
12
Duodecimal
43a8539
16
Hexadecimal
c506fd
20
Vigesimal
40e0j1
36
Base36
7or99
md5
453aa530731ab0bf4c5bd6792463a7e6
sha1
95114f7baa0fc966b80893563a3e9e96723647d4
sha256
c8a2d1e1ceb4ed5fbb524c08dc25712a7b708bcc81d9e45cda320dcec67fe396
sha512
1e1a6b5a02a283ef03ba896b0e0fd23aa6a8f74909c183794d3cd3d8e6c06effc571613485db6dd20eca75e752fa8f7f5e0e39f8d667f504160b5f0e9c3c5d2f
ripemd-160
eb07bba771080430e97810ceb0687b5e5653ba68
Diameter
25824762
Circumference
81130882.579905
Area
5.23796433369E+14
Volume
9.0179454854688E+21
Surface area
2.095185733476E+15
Circumference
81130882.579905
Perimeter
51649524
Area
166729583089161
Diagonal
18260864.332729
Surface area
1000377498534966
Volume
2.1528759008184E+21
Space diagonal
22364899.938687
Perimeter
38737143
Area
72196027258801
Altitude
11182449.969344
Surface area
72196027258801
Volume
2.5371885808697E+20
Height
6086954.7775762