18394021 is an odd 8-digits composite number following 18394020
and preceding 18394022 . In scientific notation, it is written as 1.8394021 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18046912 positive integers (up to 18394021) that are relatively prime to 18394021.
18394021 has 4 divisors, whose sum is 18741132
The reverse of 18394021 is 12049381
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million three hundred ninety-four thousand twenty-one
Scientific notation
1.8394021 × 10^7
Engineering notation
1.8394021 × 10^6
Prime Factorization
53 × 347057
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18394021
Product of the distinct prime numbers
The prime factorization of 18394021 is 53 × 347057.
Since it has a total of 2 prime factors.
2 , 6 , 81 , 47 , 69 , 824 , 1418 , 8775 , 77291 , 33967 , 110609 , 874139 , 1536005 , 2501153 , 60348013 , 65461883 , 850457518 , 90484676 , 5205084974 , 3014048700
n×2
36788042
n×3
55182063
n×4
73576084
n×5
91970105
n÷2
9197010.5
n÷3
6131340.3333333
n÷3
4598505.25
n÷5
3678804.2
n2
338340008548441
n3
6.2234332223802E+21
n4
1.1447396138456E+29
n5
2.1056364496608E+36
2 √n
4288.825130499
3 √n
263.9726259113
4 √n
65.489122230329
5 √n
28.374965071037
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
-18394020
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 18394021 can be divided by 4 positive divisors.
The sum of these divisors (counting 18394021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001010101110100101
3
Ternary
1021121111212001
4
Quaternary
1012022232211
5
Quinary
14202102041
6
Senary
1454125301
8
Octal
106125645
10
Decimal
18394021
12
Duodecimal
61b0831
16
Hexadecimal
118aba5
20
Vigesimal
5ej511
36
Base36
ay8x1
md5
4c20a618fa15a055750dd401f436cea2
sha1
2b9688d448255663528c6926af27739224cd8a0b
sha256
ade48a9c7b188a8eb8d5209e85879c0ecf6820135743e447181ead9d6828395e
sha512
5880adea9e244c2853925c3aadea00307ed6ec501cb39ba1f73b757a38cfd6c2bf4516048dc912df632e96eaf3cf8e72bf4cf8407b2abff5cc9d62b70d9b0b18
ripemd-160
63d65f38ea29951bcbeebdcbb685a793533bfe85
Diameter
36788042
Circumference
115573042.48715
Area
1.0629264852713E+15
Volume
2.6068656122048E+22
Surface area
4.2517059410852E+15
Circumference
115573042.48715
Perimeter
73576084
Area
338340008548441
Diagonal
26013073.964776
Surface area
2030040051290646
Volume
6.2234332223802E+21
Space diagonal
31859378.927489
Perimeter
55182063
Area
1.465055212598E+14
Altitude
15929689.463744
Surface area
1.465055212598E+14
Volume
7.3343863896778E+20
Height
8671024.6549252