19406721 is an odd 8-digits composite number following 19406720
and preceding 19406722 . In scientific notation, it is written as 1.9406721 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 12937812 positive integers (up to 19406721) that are relatively prime to 19406721.
19406721 has 4 divisors, whose sum is 25875632
The reverse of 19406721 is 12760491
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
nineteen million four hundred six thousand seven hundred twenty-one
Scientific notation
1.9406721 × 10^7
Engineering notation
1.9406721 × 10^6
Prime Factorization
3 × 6468907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19406721
Product of the distinct prime numbers
The prime factorization of 19406721 is 3 × 6468907.
Since it has a total of 2 prime factors.
7 , 7 , 71 , 53 , 532 , 135 , 7860 , 5580 , 15909 , 26399 , 247211 , 316734 , 6910637 , 169433 , 82691874 , 18285438 , 494631926 , 874916370 , 6970397711 , 9098408972
n×2
38813442
n×3
58220163
n×4
77626884
n×5
97033605
n÷2
9703360.5
n÷3
6468907
n÷3
4851680.25
n÷5
3881344.2
n2
376620819971841
n3
7.3089751759847E+21
n4
1.4184324203626E+29
n5
2.7527122239332E+36
2 √n
4405.3060052623
3 √n
268.7307643705
4 √n
66.372479276145
5 √n
28.680745280579
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
-19406720
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 19406721 can be divided by 4 positive divisors.
The sum of these divisors (counting 19406721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010000001111110000001
3
Ternary
1100111222000110
4
Quaternary
1022001332001
5
Quinary
14432003341
6
Senary
1531541533
8
Octal
112017601
10
Decimal
19406721
12
Duodecimal
65ba8a9
16
Hexadecimal
1281f81
20
Vigesimal
615gg1
36
Base36
bjybl
md5
ed41c9c5f46541de91120c4009e2aaf6
sha1
3baac348e48d9baf2d66d7d09d019f95477e6818
sha256
818f8ccfc4c0db9abe77c5b298e606b5d8bfaf89c196ec113fad1212ba3e78f0
sha512
ce1548517f6716e0dd1c143b2e14335b7459f77268cbeee2935a5a6e7d2183ed74b63456601668bdf142130ec6a3643964a4c3c50157d808392050e1be406cff
ripemd-160
1458b04a23c4a67c2b3713c23d8b3c3579820aa8
Diameter
38813442
Circumference
121936024.24773
Area
1.1831892012125E+15
Volume
3.0615763624192E+22
Surface area
4.73275680485E+15
Circumference
121936024.24773
Perimeter
77626884
Area
376620819971841
Diagonal
27445248.039391
Surface area
2259724919831046
Volume
7.3089751759847E+21
Space diagonal
33613426.780314
Perimeter
58220163
Area
1.6308159884487E+14
Altitude
16806713.390157
Surface area
1.6308159884487E+14
Volume
8.6137098507716E+20
Height
9148416.0131303