12388891 is an odd 8-digits composite number following 12388890
and preceding 12388892 . In scientific notation, it is written as 1.2388891 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 12344832 positive integers (up to 12388891) that are relatively prime to 12388891.
12388891 has 4 divisors, whose sum is 12432952
The reverse of 12388891 is 19888321
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twelve million three hundred eighty-eight thousand eight hundred ninety-one
Scientific notation
1.2388891 × 10^7
Engineering notation
1.2388891 × 10^6
Prime Factorization
283 × 43777
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12388891
Product of the distinct prime numbers
The prime factorization of 12388891 is 283 × 43777.
Since it has a total of 2 prime factors.
8 , 9 , 5 , 60 , 852 , 936 , 7865 , 190 , 74721 , 40724 , 474450 , 803103 , 5378976 , 1203742 , 21259013 , 2742867 , 670015774 , 97142062 , 8249263138 , 7009583390
n×2
24777782
n×3
37166673
n×4
49555564
n×5
61944455
n÷2
6194445.5
n÷3
4129630.3333333
n÷3
3097222.75
n÷5
2477778.2
n2
153484620209881
n3
1.9015042299566E+21
n4
2.3557528640971E+28
n5
2.9185165456237E+35
2 √n
3519.7856468825
3 √n
231.38976445202
4 √n
59.327781408734
5 √n
26.218418196448
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
-12388890
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 12388891 can be divided by 4 positive divisors.
The sum of these divisors (counting 12388891) is 1, the average is 0.25.
Base
System
Value
2
Binary
101111010000101000011011
3
Ternary
212022102100211
4
Quaternary
233100220123
5
Quinary
11132421031
6
Senary
1121311551
8
Octal
57205033
10
Decimal
12388891
12
Duodecimal
41955b7
16
Hexadecimal
bd0a1b
20
Vigesimal
3h8c4b
36
Base36
7djbv
md5
fb0319194f68b60335bf5f8189a990e6
sha1
a11b6e2d5b9e1c481417c5f21f3ccde6f872a643
sha256
234e54c856dfa4c523ac6547c5d1ac904d67c8928a89de345e40421650a17a15
sha512
ba1b216b2b0c86d6d4ad6601b30c18751afe8ee9318031449e99333299d67eb7be585e398f54b835d54a19ffad38f7deb684dd97f0d5aa5e61de2c47f091d52f
ripemd-160
1884de9d2523338f8978c488a8f9b89741ae2968
Diameter
24777782
Circumference
77841697.903449
Area
4.8218615529038E+14
Volume
7.9650022928021E+21
Surface area
1.9287446211615E+15
Circumference
77841697.903449
Perimeter
49555564
Area
153484620209881
Diagonal
17520537.674962
Surface area
920907721259286
Volume
1.9015042299566E+21
Space diagonal
21458188.661433
Perimeter
37166673
Area
66460790095982
Altitude
10729094.330716
Surface area
66460790095982
Volume
2.240944225762E+20
Height
5840179.2249873