12145891 is an odd 8-digits composite number following 12145890
and preceding 12145892 . In scientific notation, it is written as 1.2145891 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 12032272 positive integers (up to 12145891) that are relatively prime to 12145891.
12145891 has 4 divisors, whose sum is 12259512
The reverse of 12145891 is 19854121
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million one hundred forty-five thousand eight hundred ninety-one
Scientific notation
1.2145891 × 10^7
Engineering notation
1.2145891 × 10^6
Prime Factorization
107 × 113513
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12145891
Product of the distinct prime numbers
The prime factorization of 12145891 is 107 × 113513.
Since it has a total of 2 prime factors.
6 , 1 , 16 , 90 , 17 , 405 , 4378 , 5006 , 49583 , 36059 , 286421 , 898935 , 3991830 , 8885421 , 62247418 , 55466316 , 852467049 , 417447691 , 8802632177 , 1416383781
n×2
24291782
n×3
36437673
n×4
48583564
n×5
60729455
n÷2
6072945.5
n÷3
4048630.3333333
n÷3
3036472.75
n÷5
2429178.2
n2
147522668183881
n3
1.7917942477906E+21
n4
2.1762937628091E+28
n5
2.643302682706E+35
2 √n
3485.0955510574
3 √n
229.86691103095
4 √n
59.034697856916
5 √n
26.11475019456
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
-12145890
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 12145891 can be divided by 4 positive divisors.
The sum of these divisors (counting 12145891) is 1, the average is 0.25.
Base
System
Value
2
Binary
101110010101010011100011
3
Ternary
211212002000211
4
Quaternary
232111103203
5
Quinary
11102132031
6
Senary
1112154551
8
Octal
56252343
10
Decimal
12145891
12
Duodecimal
4098a57
16
Hexadecimal
b954e3
20
Vigesimal
3fi4eb
36
Base36
78btv
md5
527628304567cc9006f396211779d1b7
sha1
aa152454b415d4244d148f2b0da7ce0b4316cd6a
sha256
028b155e93d325f0c86fff240d24142f79f78fe70ad7321f2c036cef900a2902
sha512
979f8efe23205086d30f958b3a360d483bc4a8817fb057e9faba7f13e3396573955ed776d54ee7157d6cb2f73231df2c29b16bb1463c6545aa575f711588ef51
ripemd-160
72531636faaef723399d423e84fbae93af388598
Diameter
24291782
Circumference
76314883.873805
Area
4.6345613060445E+14
Volume
7.5054501941378E+21
Surface area
1.8538245224178E+15
Circumference
76314883.873805
Perimeter
48583564
Area
147522668183881
Diagonal
17176883.779305
Surface area
885136009103286
Volume
1.7917942477906E+21
Space diagonal
21037300.315194
Perimeter
36437673
Area
63879189140652
Altitude
10518650.157597
Surface area
63879189140652
Volume
2.1116497718396E+20
Height
5725627.9264351