18156939 is an odd 8-digits composite number following 18156938
and preceding 18156940 . In scientific notation, it is written as 1.8156939 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 12104624 positive integers (up to 18156939) that are relatively prime to 18156939.
18156939 has 4 divisors, whose sum is 24209256
The reverse of 18156939 is 93965181
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million one hundred fifty-six thousand nine hundred thirty-nine
Scientific notation
1.8156939 × 10^7
Engineering notation
1.8156939 × 10^6
Prime Factorization
3 × 6052313
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18156939
Product of the distinct prime numbers
The prime factorization of 18156939 is 3 × 6052313.
Since it has a total of 2 prime factors.
8 , 5 , 77 , 28 , 547 , 460 , 5106 , 7491 , 40111 , 62037 , 836076 , 870359 , 4012351 , 8447162 , 55575111 , 71193266 , 210064431 , 226526269 , 6643967942 , 2649088144
n×2
36313878
n×3
54470817
n×4
72627756
n×5
90784695
n÷2
9078469.5
n÷3
6052313
n÷3
4539234.75
n÷5
3631387.8
n2
329674433849721
n3
5.9858785852689E+21
n4
1.0868523233413E+29
n5
1.9733911336917E+36
2 √n
4261.0959857764
3 √n
262.83359673245
4 √n
65.277070903775
5 √n
28.301439580724
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
-18156938
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 18156939 can be divided by 4 positive divisors.
The sum of these divisors (counting 18156939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101010000110110001011
3
Ternary
1021011110122020
4
Quaternary
1011100312023
5
Quinary
14122010224
6
Senary
1445055523
8
Octal
105206613
10
Decimal
18156939
12
Duodecimal
60b75a3
16
Hexadecimal
1150d8b
20
Vigesimal
5d9c6j
36
Base36
at5zf
md5
3806fb3be4867367caff4cf97f926828
sha1
72d98259561880485e4ab9f05cd79d0ae45d60c8
sha256
d7d639354790c0e29e90354aa6d07365bf7b13369bd353f57b40489a775d1e6e
sha512
f648ed95a7c5d32d61a358ecdbc9023d812deff2a3a7cd67503f23f1552afbcccff8a65988e80dc9632deef42ec8de51ed5961e1c957009392fe77ce662c33fd
ripemd-160
9de94317bf3adeee7f77f6654acfd61acf17435c
Diameter
36313878
Circumference
114083412.34816
Area
1.0357027794587E+15
Volume
2.5073589585015E+22
Surface area
4.1428111178346E+15
Circumference
114083412.34816
Perimeter
72627756
Area
329674433849721
Diagonal
25677789.384981
Surface area
1978046603098326
Volume
5.9858785852689E+21
Space diagonal
31448740.857929
Perimeter
54470817
Area
1.4275321734606E+14
Altitude
15724370.428964
Surface area
1.4275321734606E+14
Volume
7.054425565005E+20
Height
8559263.128327