15391381 is an odd 8-digits prime number following 15391380
and preceding 15391382 . In scientific notation, it is written as 1.5391381 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 15391380 positive integers (up to 15391381) that are relatively prime to 15391381.
15391381 has 2 divisors, whose sum is 15391382
The reverse of 15391381 is 18319351
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million three hundred ninety-one thousand three hundred eighty-one
Scientific notation
1.5391381 × 10^7
Engineering notation
1.5391381 × 10^6
Prime Factorization
15391381
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
15391381
Product of the distinct prime numbers
The prime factorization of 15391381 is 15391381.
Since it has a total of 1 prime factors.
6 , 9 , 45 , 85 , 191 , 16 , 6056 , 1145 , 62451 , 7872 , 153109 , 162085 , 9112641 , 3192565 , 58327943 , 98054979 , 44154631 , 391749057 , 4808491812 , 6631465371
n×2
30782762
n×3
46174143
n×4
61565524
n×5
76956905
n÷2
7695690.5
n÷3
5130460.3333333
n÷3
3847845.25
n÷5
3078276.2
n2
236894609087161
n3
3.6461351853066E+21
n4
5.6119055814559E+28
n5
8.6374976940214E+35
2 √n
3923.1850580874
3 √n
248.74777015417
4 √n
62.635333942491
5 √n
27.381391684547
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
15391382
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
7695691
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3923.1851855348
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998700572
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15391381 can be divided by 2 positive divisors.
The sum of these divisors (counting 15391381) is 15391382, the average is 7695691.
Base
System
Value
2
Binary
111010101101101010010101
3
Ternary
1001221222000011
4
Quaternary
322231222111
5
Quinary
12420011011
6
Senary
1305520221
8
Octal
72555225
10
Decimal
15391381
12
Duodecimal
51a3071
16
Hexadecimal
eada95
20
Vigesimal
4g3i91
36
Base36
95w2d
md5
bff69ac0685435f41c0505748a9012b7
sha1
7b4d963b9781064f040b26f475402b98809c7210
sha256
a966f24893c78dab62f06643e3afa4e96685439c0745af7bf1891a2464bde444
sha512
17ce0b44e5d454b8b018c43b1774ba6c1a09201bffa999a197846f345c1d30001b31009f4a157e665c963dadd885370a869e8d4fa5499119576cae827b0ee327
ripemd-160
7f93ec1c8e86bcb7932f78361be672a0f3a68f22
Diameter
30782762
Circumference
96706898.956403
Area
7.4422636358325E+14
Volume
1.5272895349539E+22
Surface area
2.976905454333E+15
Circumference
96706898.956403
Perimeter
61565524
Area
236894609087161
Diagonal
21766699.753852
Surface area
1421367654522966
Volume
3.6461351853066E+21
Space diagonal
26658653.89065
Perimeter
46174143
Area
1.0257837474453E+14
Altitude
13329326.945325
Surface area
1.0257837474453E+14
Volume
4.2970115244219E+20
Height
7255566.5846172