19981615 is an odd 8-digits composite number following 19981614
and preceding 19981616 . In scientific notation, it is written as 1.9981615 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 15985288 positive integers (up to 19981615) that are relatively prime to 19981615.
19981615 has 4 divisors, whose sum is 23977944
The reverse of 19981615 is 51618991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
nineteen million nine hundred eighty-one thousand six hundred fifteen
Scientific notation
1.9981615 × 10^7
Engineering notation
1.9981615 × 10^6
Prime Factorization
5 × 3996323
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19981615
Product of the distinct prime numbers
The prime factorization of 19981615 is 5 × 3996323.
Since it has a total of 2 prime factors.
9 , 10 , 9 , 9 , 623 , 630 , 1151 , 9050 , 63469 , 86117 , 273813 , 26741 , 5592465 , 7336308 , 899501 , 91265855 , 432615673 , 236849943 , 4678914204 , 668410146
n×2
39963230
n×3
59944845
n×4
79926460
n×5
99908075
n÷2
9990807.5
n÷3
6660538.3333333
n÷3
4995403.75
n÷5
3996323
n2
399264938008225
n3
7.9779582742792E+21
n4
1.5941249072271E+29
n5
3.1853190158123E+36
2 √n
4470.0799769132
3 √n
271.35856188068
4 √n
66.85865670886
5 √n
28.848691358936
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
-19981614
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 19981615 can be divided by 4 positive divisors.
The sum of these divisors (counting 19981615) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001110010100101111
3
Ternary
1101121011121211
4
Quaternary
1030032110233
5
Quinary
20103402430
6
Senary
1552135251
8
Octal
114162457
10
Decimal
19981615
12
Duodecimal
6837527
16
Hexadecimal
130e52f
20
Vigesimal
64he0f
36
Base36
bw9wv
md5
c28dd83312abd1cdd83ffcf855a63c4c
sha1
5f3b48e95a92d91cfb7c998cd00f3601af1a16e6
sha256
2753647b31f948b28bc33d65d8eccf36a177b51ae741980aa68090ce68f66a52
sha512
b1dd9d7d7384c97d92b1dbd63a1287bb10c764e1774504a3802f7816b307aae14368a0757a7b1982ecdd0ca81363c9f5daa312cd724d3eb39bf662e7cfd3db63
ripemd-160
b8db6e5be1ecbb6f3d5c8d61163576f89d5bb041
Diameter
39963230
Circumference
125548189.78172
Area
1.2543277960826E+15
Volume
3.3417993473495E+22
Surface area
5.0173111843305E+15
Circumference
125548189.78172
Perimeter
79926460
Area
399264938008225
Diagonal
28258270.931118
Surface area
2395589628049350
Volume
7.9779582742792E+21
Space diagonal
34609172.39728
Perimeter
59944845
Area
1.7288678957777E+14
Altitude
17304586.19864
Surface area
1.7288678957777E+14
Volume
9.4021139929436E+20
Height
9419423.6437059