15491381 is an odd 8-digits composite number following 15491380
and preceding 15491382 . In scientific notation, it is written as 1.5491381 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 15387264 positive integers (up to 15491381) that are relatively prime to 15491381.
15491381 has 4 divisors, whose sum is 15595500
The reverse of 15491381 is 18319451
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
fifteen million four hundred ninety-one thousand three hundred eighty-one
Scientific notation
1.5491381 × 10^7
Engineering notation
1.5491381 × 10^6
Prime Factorization
149 × 103969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15491381
Product of the distinct prime numbers
The prime factorization of 15491381 is 149 × 103969.
Since it has a total of 2 prime factors.
6 , 8 , 56 , 50 , 788 , 94 , 7947 , 1141 , 53277 , 25584 , 443405 , 405150 , 7809694 , 5844352 , 34111142 , 59928854 , 139238025 , 634482704 , 9678275791 , 7530067609
n×2
30982762
n×3
46474143
n×4
61965524
n×5
77456905
n÷2
7745690.5
n÷3
5163793.6666667
n÷3
3872845.25
n÷5
3098276.2
n2
239982885287161
n3
3.7176663094627E+21
n4
5.7591785230751E+28
n5
8.9217628747973E+35
2 √n
3935.9091707
3 √n
249.28532423435
4 √n
62.736824678174
5 √n
27.416879737903
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
-15491380
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 15491381 can be divided by 4 positive divisors.
The sum of these divisors (counting 15491381) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011000110000100110101
3
Ternary
1002011001011212
4
Quaternary
323012010311
5
Quinary
12431211011
6
Senary
1312011205
8
Octal
73060465
10
Decimal
15491381
12
Duodecimal
5230b05
16
Hexadecimal
ec6135
20
Vigesimal
4gg891
36
Base36
98185
md5
afa82ca036d2de97a049d55994dfc9a1
sha1
aa827851efd6e4e6d29503f22b426449d466ec23
sha256
6f9137cf75a3ea4effd68f1c23fc3e8fc7ddc8aa58f8d8c497f58b0803c893cb
sha512
cb5f67f46d20c551247b1718efcb28dde629645e73c1406ca3b1d28a44f2b64820ba5c5e39fdf5f7572ee861af923298dc7da1c118e2e465cf95af2fc40649d8
ripemd-160
cab54f53b33ab64ab1f28baf7cd1509580cdc137
Diameter
30982762
Circumference
97335217.487121
Area
7.5392846940543E+14
Volume
1.5572524221742E+22
Surface area
3.0157138776217E+15
Circumference
97335217.487121
Perimeter
61965524
Area
239982885287161
Diagonal
21908121.110089
Surface area
1439897311722966
Volume
3.7176663094627E+21
Space diagonal
26831858.971407
Perimeter
46474143
Area
1.0391563756608E+14
Altitude
13415929.485704
Surface area
1.0391563756608E+14
Volume
4.3813117626831E+20
Height
7302707.0366963