18042181 is an odd 8-digits prime number following 18042180
and preceding 18042182 . In scientific notation, it is written as 1.8042181 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 18042180 positive integers (up to 18042181) that are relatively prime to 18042181.
18042181 has 2 divisors, whose sum is 18042182
The reverse of 18042181 is 18124081
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million forty-two thousand one hundred eighty-one
Scientific notation
1.8042181 × 10^7
Engineering notation
1.8042181 × 10^6
Prime Factorization
18042181
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18042181
Product of the distinct prime numbers
The prime factorization of 18042181 is 18042181.
Since it has a total of 1 prime factors.
3 , 7 , 12 , 50 , 243 , 800 , 1738 , 5062 , 54103 , 42094 , 574548 , 256375 , 7865208 , 9644372 , 81508043 , 25208718 , 199540810 , 481743400 , 2262901775 , 9798251583
n×2
36084362
n×3
54126543
n×4
72168724
n×5
90210905
n÷2
9021090.5
n÷3
6014060.3333333
n÷3
4510545.25
n÷5
3608436.2
n2
325520295236761
n3
5.8730960858351E+21
n4
1.0596346261103E+29
n5
1.9118119718149E+36
2 √n
4247.6088567569
3 √n
262.27869359613
4 √n
65.17368224028
5 √n
28.265573856889
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18042182
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9021091
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4247.6089744702
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998891487
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18042181 can be divided by 2 positive divisors.
The sum of these divisors (counting 18042181) is 18042182, the average is 9021091.
Base
System
Value
2
Binary
1000100110100110101000101
3
Ternary
1020221122012221
4
Quaternary
1010310311011
5
Quinary
14104322211
6
Senary
1442412341
8
Octal
104646505
10
Decimal
18042181
12
Duodecimal
60610b1
16
Hexadecimal
1134d45
20
Vigesimal
5cf591
36
Base36
aqpfp
md5
3baadf94390dfbf096f27b056fc36198
sha1
22708034847910e109a45b9f3719d5d283e729bb
sha256
6899bee71275e17572a8f08b4b3de0102c84b38a7ed6525bff69bc431c070585
sha512
4da91dc026191c47bde6f630a6d62f626013d091c7bad391ba47e76898c82f4fb530fe80aa84804323fc61bec019fe7d90c15e0dee8610122e0b15029d1aa111
ripemd-160
50c7ca6a2ea1ed0833f55922d737fbfc6c7cb9fb
Diameter
36084362
Circumference
113362366.56867
Area
1.0226521681102E+15
Volume
2.4601167356115E+22
Surface area
4.0906086724408E+15
Circumference
113362366.56867
Perimeter
72168724
Area
325520295236761
Diagonal
25515497.06499
Surface area
1953121771420566
Volume
5.8730960858351E+21
Space diagonal
31249974.171354
Perimeter
54126543
Area
1.4095442256122E+14
Altitude
15624987.085677
Surface area
1.4095442256122E+14
Volume
6.9215101147569E+20
Height
8505165.6883301