11487991 is an odd 8-digits composite number following 11487990
and preceding 11487992 . In scientific notation, it is written as 1.1487991 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 11481184 positive integers (up to 11487991) that are relatively prime to 11487991.
11487991 has 4 divisors, whose sum is 11494800
The reverse of 11487991 is 19978411
Previous prime number is 3719
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eleven million four hundred eighty-seven thousand nine hundred ninety-one
Scientific notation
1.1487991 × 10^7
Engineering notation
1.1487991 × 10^6
Prime Factorization
3719 × 3089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
11487991
Product of the distinct prime numbers
The prime factorization of 11487991 is 3719 × 3089.
Since it has a total of 2 prime factors.
10 , 2 , 15 , 17 , 453 , 116 , 8516 , 9115 , 71433 , 47831 , 240800 , 132829 , 2896163 , 9669576 , 22086539 , 29581841 , 957299190 , 57548825 , 7408841936 , 1334912745
n×2
22975982
n×3
34463973
n×4
45951964
n×5
57439955
n÷2
5743995.5
n÷3
3829330.3333333
n÷3
2871997.75
n÷5
2297598.2
n2
131973937216081
n3
1.5161154029729E+21
n4
1.7417120104314E+28
n5
2.0008771900428E+35
2 √n
3389.3938986196
3 √n
225.6392749618
4 √n
58.218501342955
5 √n
25.825504686457
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
-11487990
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 11487991 can be divided by 4 positive divisors.
The sum of these divisors (counting 11487991) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011110100101011110111
3
Ternary
210121122120011
4
Quaternary
223310223313
5
Quinary
10420103431
6
Senary
1050121051
8
Octal
53645367
10
Decimal
11487991
12
Duodecimal
3a20187
16
Hexadecimal
af4af7
20
Vigesimal
3bfjjb
36
Base36
6u86v
md5
c4904c4a4002a7eb36e3624cea9b7838
sha1
fcc0ca9de73800527c856772ba21d8b29e90597c
sha256
aa45009009cd8c429b18d2d22dd6ccfd9a01b3602e79817cf31d5fdc6415a5d8
sha512
9ae749dae91c4b5a02b5fbf37aeacfedd77921c3a275032e6046db0af6a97246c66bf4baf21673bb2cd85c508a69395d2aadfc2fa9210997bf477d1e64225b4a
ripemd-160
e6b7c9d2d1ca0b8d51fe7688f7e91ed8a273267b
Diameter
22975982
Circumference
72181176.260211
Area
4.1460835162336E+14
Volume
6.3506893492987E+21
Surface area
1.6584334064934E+15
Circumference
72181176.260211
Perimeter
45951964
Area
131973937216081
Diagonal
16246472.67662
Surface area
791843623296486
Volume
1.5161154029729E+21
Space diagonal
19897784.088894
Perimeter
34463973
Area
57146391133289
Altitude
9948892.044447
Surface area
57146391133289
Volume
1.7867591375059E+20
Height
5415490.8922067