18996821 is an odd 8-digits prime number following 18996820
and preceding 18996822 . In scientific notation, it is written as 1.8996821 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 18996820 positive integers (up to 18996821) that are relatively prime to 18996821.
18996821 has 2 divisors, whose sum is 18996822
The reverse of 18996821 is 12869981
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million nine hundred ninety-six thousand eight hundred twenty-one
Scientific notation
1.8996821 × 10^7
Engineering notation
1.8996821 × 10^6
Prime Factorization
18996821
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18996821
Product of the distinct prime numbers
The prime factorization of 18996821 is 18996821.
Since it has a total of 1 prime factors.
1 , 10 , 36 , 9 , 556 , 88 , 1893 , 1126 , 7119 , 50916 , 252294 , 188193 , 6570322 , 1410918 , 56454741 , 78188876 , 1384224 , 731010584 , 3634264718 , 9707397123
n×2
37993642
n×3
56990463
n×4
75987284
n×5
94984105
n÷2
9498410.5
n÷3
6332273.6666667
n÷3
4749205.25
n÷5
3799364.2
n2
360879208106041
n3
6.8555577190122E+21
n4
1.3023380284324E+29
n5
2.4740282407624E+36
2 √n
4358.5342719772
3 √n
266.82528185116
4 √n
66.019196238497
5 √n
28.558552158857
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18996822
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9498411
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4358.5343866947
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998947192
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18996821 can be divided by 2 positive divisors.
The sum of these divisors (counting 18996821) is 18996822, the average is 9498411.
Base
System
Value
2
Binary
1001000011101111001010101
3
Ternary
1022202010201222
4
Quaternary
1020131321111
5
Quinary
14330344241
6
Senary
1515100125
8
Octal
110357125
10
Decimal
18996821
12
Duodecimal
6441645
16
Hexadecimal
121de55
20
Vigesimal
5iec11
36
Base36
bb61h
md5
9ffea61a1006fb6fa736fc6df3270de5
sha1
187f41af0aa037aae98dee2e67bdfd076de1b9b3
sha256
909edc7d1d3cfaeab78ec554ad8cf7b5763d3a8092a181320e86f37abdaa5d3c
sha512
40550baabecf2fdcb6f88cab735f46d1895d3e71c640e4d1da6c7213906cd6777842eb92d9ae64d0970dfefd7db8675c559f997e07f143c6d9f765e02ea9c6f9
ripemd-160
2363f4d0413557ba2905851e7995b0752b23263d
Diameter
37993642
Circumference
119360546.59032
Area
1.1337354690192E+15
Volume
2.8716493021746E+22
Surface area
4.534941876077E+15
Circumference
119360546.59032
Perimeter
75987284
Area
360879208106041
Diagonal
26865561.900174
Surface area
2165275248636246
Volume
6.8555577190122E+21
Space diagonal
32903459.154291
Perimeter
56990463
Area
1.5626528095872E+14
Altitude
16451729.577146
Surface area
1.5626528095872E+14
Volume
8.0793522532155E+20
Height
8955187.300058