19998904 is an even 8-digits composite number following 19998903
and preceding 19998905 . In scientific notation, it is written as 1.9998904 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 8 positive divisors.
There are 9999448 positive integers (up to 19998904) that are relatively prime to 19998904.
19998904 has 8 divisors, whose sum is 37497960
The reverse of 19998904 is 40989991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred ninety-eight thousand nine hundred four
Scientific notation
1.9998904 × 10^7
Engineering notation
1.9998904 × 10^6
Prime Factorization
2 × 2 × 2 × 2499863
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4999726
Product of the distinct prime numbers
The prime factorization of 19998904 is 2 × 2 × 2 × 2499863.
Since it has a total of 4 prime factors.
6 , 2 , 52 , 14 , 704 , 646 , 5692 , 6604 , 2253 , 36672 , 690724 , 300645 , 7885771 , 691803 , 81872095 , 22252639 , 462953362 , 356745130 , 7994908487 , 4080187918
n×2
39997808
n×3
59996712
n×4
79995616
n×5
99994520
n÷2
9999452
n÷3
6666301.3333333
n÷3
4999726
n÷5
3999780.8
n2
399956161201216
n3
7.9986848720716E+21
n4
1.5996493088281E+29
n5
3.199123296092E+36
2 √n
4472.0134167956
3 √n
271.43680323274
4 √n
66.873114304596
5 √n
28.853681871393
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19998903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19998904 can be divided by 8 positive divisors.
The sum of these divisors (counting 19998904) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010010100010111000
3
Ternary
1101122001100011
4
Quaternary
1030102202320
5
Quinary
20104431104
6
Senary
1552351304
8
Octal
114224270
10
Decimal
19998904
12
Duodecimal
6845534
16
Hexadecimal
13128b8
20
Vigesimal
64jh54
36
Base36
bwn94
md5
04631bd7104852bee61668341b2e3947
sha1
6461b70e39cf0a5570cc369b15d6fd32cb81f7ca
sha256
70c7abdb9fde23c80921012d2a98dfaee54ee51bb0444c196b2e0a7d641c5839
sha512
5cbe0c053c8cce76b4128f04f337b8bf59251019fc192e9c8d09eb86ad620e2ea4f09d398b51fc6a4fddbdbb8fdce274a5c3b67b75e6c5afde7cf6e23ed486c2
ripemd-160
1311e5ec1069c1074d21253c0fb59b3513e6911e
Diameter
39997808
Circumference
125656819.7725
Area
1.2564993377877E+15
Volume
3.3504812843307E+22
Surface area
5.0259973511509E+15
Circumference
125656819.7725
Perimeter
79995616
Area
399956161201216
Diagonal
28282721.269398
Surface area
2399736967207296
Volume
7.9986848720716E+21
Space diagonal
34639117.823692
Perimeter
59996712
Area
1.7318609800018E+14
Altitude
17319558.911846
Surface area
1.7318609800018E+14
Volume
9.4265405226935E+20
Height
9427573.7564658