15561391 is an odd 8-digits prime number following 15561390
and preceding 15561392 . In scientific notation, it is written as 1.5561391 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 15561390 positive integers (up to 15561391) that are relatively prime to 15561391.
15561391 has 2 divisors, whose sum is 15561392
The reverse of 15561391 is 19316551
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million five hundred sixty-one thousand three hundred ninety-one
Scientific notation
1.5561391 × 10^7
Engineering notation
1.5561391 × 10^6
Prime Factorization
15561391
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
15561391
Product of the distinct prime numbers
The prime factorization of 15561391 is 15561391.
Since it has a total of 1 prime factors.
2 , 2 , 20 , 13 , 948 , 7 , 3756 , 6994 , 482 , 94116 , 195144 , 667017 , 7208381 , 3370698 , 27169222 , 30926729 , 9326900 , 439424988 , 9871838266 , 448135343
n×2
31122782
n×3
46684173
n×4
62245564
n×5
77806955
n÷2
7780695.5
n÷3
5187130.3333333
n÷3
3890347.75
n÷5
3112278.2
n2
242156889854881
n3
3.7682980463757E+21
n4
5.8639959304189E+28
n5
9.1251933495657E+35
2 √n
3944.7928969719
3 √n
249.66029059918
4 √n
62.807586301114
5 √n
27.441616012878
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
15561392
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
7780696
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3944.7930237213
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998714768
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15561391 can be divided by 2 positive divisors.
The sum of these divisors (counting 15561391) is 15561392, the average is 7780696.
Base
System
Value
2
Binary
111011010111001010101111
3
Ternary
1002021121012211
4
Quaternary
323113022233
5
Quinary
12440431031
6
Senary
1313311251
8
Octal
73271257
10
Decimal
15561391
12
Duodecimal
5265527
16
Hexadecimal
ed72af
20
Vigesimal
4h539b
36
Base36
99j8v
md5
e78fbf07d5f8fdbd6db9241bcb9b2318
sha1
bcdc51b36e1c52309a2ef315dba9ff1883790b47
sha256
ddf1ff747061e72a77350c7bb4524307df02a3d93a053b2675baa460c4aa6615
sha512
1c874b85870a1004a82e29ca06659ee1c37f125f2f94fd32d357545af774961b5664e58add1c1ddd2fc4537b6650f5cbaeb914155e678d4305ca4d54752e7901
ripemd-160
3a91292c5c7f5ecc36381aab1eceaf70c47db9dc
Diameter
31122782
Circumference
97775103.290477
Area
7.6075830618425E+14
Volume
1.5784609945374E+22
Surface area
3.043033224737E+15
Circumference
97775103.290477
Perimeter
62245564
Area
242156889854881
Diagonal
22007130.201591
Surface area
1452941339129286
Volume
3.7682980463757E+21
Space diagonal
26953119.848445
Perimeter
46684173
Area
1.0485700915788E+14
Altitude
13476559.924223
Surface area
1.0485700915788E+14
Volume
4.4409818368738E+20
Height
7335710.0671969