18542989 is an odd 8-digits prime number following 18542988
and preceding 18542990 . In scientific notation, it is written as 1.8542989 × 10^7.
The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors.
There are 18542988 positive integers (up to 18542989) that are relatively prime to 18542989.
18542989 has 2 divisors, whose sum is 18542990
The reverse of 18542989 is 98924581
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million five hundred forty-two thousand nine hundred eighty-nine
Scientific notation
1.8542989 × 10^7
Engineering notation
1.8542989 × 10^6
Prime Factorization
18542989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18542989
Product of the distinct prime numbers
The prime factorization of 18542989 is 18542989.
Since it has a total of 1 prime factors.
10 , 4 , 63 , 32 , 185 , 786 , 1433 , 9500 , 62715 , 81489 , 991213 , 619194 , 1623400 , 5398264 , 67232282 , 10910714 , 363299598 , 428277611 , 1483284506 , 483717001
n×2
37085978
n×3
55628967
n×4
74171956
n×5
92714945
n÷2
9271494.5
n÷3
6180996.3333333
n÷3
4635747.25
n÷5
3708597.8
n2
343842441054121
n3
6.3758666021997E+21
n4
1.1822762427006E+29
n5
2.1922935363358E+36
2 √n
4306.1571034973
3 √n
264.68332410717
4 √n
65.621315923237
5 √n
28.42077707452
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18542990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9271495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4306.1572196101
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998921425
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18542989 can be divided by 2 positive divisors.
The sum of these divisors (counting 18542989) is 18542990, the average is 9271495.
Base
System
Value
2
Binary
1000110101111000110001101
3
Ternary
1021220002012101
4
Quaternary
1012233012031
5
Quinary
14221333424
6
Senary
1501235101
8
Octal
106570615
10
Decimal
18542989
12
Duodecimal
6262a91
16
Hexadecimal
11af18d
20
Vigesimal
5fhh99
36
Base36
b1fv1
md5
43b2ee233b59ce8785121b4bd19c8584
sha1
427151daeac0284f9543e618f38932d15193d31e
sha256
a7d78a881b6cb58f5904aadd1e13697523fc6af36aca3e0874cf85dfc647fe7f
sha512
d77aa7fef0567d17389b2682698a9f8228023b8fd7c6fbbcfba15a92c280d50adb01efa3244bf8e3c59cae24ebafa80533db31fd316ce3abc9fb010700126671
ripemd-160
62662dc9ef6ec467344d61e40926af5ed732f95a
Diameter
37085978
Circumference
116509036.03599
Area
1.080212886808E+15
Volume
2.6707167570319E+22
Surface area
4.320851547232E+15
Circumference
116509036.03599
Perimeter
74171956
Area
343842441054121
Diagonal
26223746.530735
Surface area
2063054646324726
Volume
6.3758666021997E+21
Space diagonal
32117399.072191
Perimeter
55628967
Area
1.4888814442606E+14
Altitude
16058699.536095
Surface area
1.4888814442606E+14
Volume
7.5140308505937E+20
Height
8741248.8435784