18389621 is an odd 8-digits prime number following 18389620
and preceding 18389622 . In scientific notation, it is written as 1.8389621 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 18389620 positive integers (up to 18389621) that are relatively prime to 18389621.
18389621 has 2 divisors, whose sum is 18389622
The reverse of 18389621 is 12698381
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million three hundred eighty-nine thousand six hundred twenty-one
Scientific notation
1.8389621 × 10^7
Engineering notation
1.8389621 × 10^6
Prime Factorization
18389621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18389621
Product of the distinct prime numbers
The prime factorization of 18389621 is 18389621.
Since it has a total of 1 prime factors.
8 , 6 , 56 , 87 , 980 , 961 , 9763 , 5540 , 37689 , 94136 , 79730 , 976386 , 754984 , 3455327 , 72102679 , 29982741 , 334837643 , 921001413 , 1295050322 , 3105677736
n×2
36779242
n×3
55168863
n×4
73558484
n×5
91948105
n÷2
9194810.5
n÷3
6129873.6666667
n÷3
4597405.25
n÷5
3677924.2
n2
338178160523641
n3
6.2189682025069E+21
n4
1.1436446825515E+29
n5
2.1031192270788E+36
2 √n
4288.3121388257
3 √n
263.95157609702
4 √n
65.485205495789
5 √n
28.373607436466
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18389622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9194811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4288.3122554217
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999891243
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18389621 can be divided by 2 positive divisors.
The sum of these divisors (counting 18389621) is 18389622, the average is 9194811.
Base
System
Value
2
Binary
1000110001001101001110101
3
Ternary
1021121021211002
4
Quaternary
1012021221311
5
Quinary
14201431441
6
Senary
1454053045
8
Octal
106115165
10
Decimal
18389621
12
Duodecimal
61aa185
16
Hexadecimal
1189a75
20
Vigesimal
5eie11
36
Base36
ay5it
md5
5d91391e4536cac3821bc55a3ea409e1
sha1
985d3ed2acfff489d453a66f2b79f95124545ce2
sha256
0c4247cf542524bd16d9554eb42beb97a83e06186aa1e1c58f95a776eb6cf667
sha512
e870f1d77171891af21852d990667dedf8fd5b989a304cc7ed012aedc70ce946b92c082228f40fbe77d66af24d234877cfef48c5405f1b3c35171e3794f3f72e
ripemd-160
c1e03f481319f9ed92ffc039003a9827fb3654a0
Diameter
36779242
Circumference
115545396.4718
Area
1.0624180247056E+15
Volume
2.6049953090539E+22
Surface area
4.2496720988223E+15
Circumference
115545396.4718
Perimeter
73558484
Area
338178160523641
Diagonal
26006851.425101
Surface area
2029068963141846
Volume
6.2189682025069E+21
Space diagonal
31851757.903936
Perimeter
55168863
Area
1.4643543900928E+14
Altitude
15925878.951968
Surface area
1.4643543900928E+14
Volume
7.3291243132936E+20
Height
8668950.4750337