15691081 (number)

15691081 is an odd 8-digits composite number following 15691080 and preceding 15691082. In scientific notation, it is written as 1.5691081 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 13449492 positive integers (up to 15691081) that are relatively prime to 15691081.

Interesting facts

Basic properties

Name

Name fifteen million six hundred ninety-one thousand eighty-one

Notation

Scientific notation 1.5691081 × 10^7
Engineering notation 1.5691081 × 10^6

Prime Factorization of 15691081

Prime Factorization 7 × 2241583

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 15691081
Product of the distinct prime numbers

The prime factorization of 15691081 is 7 × 2241583. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 15691081)

Multiplication

n×y
n×2 31382162
n×3 47073243
n×4 62764324
n×5 78455405

Division

n÷y
n÷2 7845540.5
n÷3 5230360.3333333
n÷3 3922770.25
n÷5 3138216.2

Exponentiation

ny
n2 246210022948561
n3 3.8633014130977E+21
n4 6.0619375400331E+28
n5 9.51183529576E+35

Nth Root

y√n
2√n 3961.196915075
3√n 250.35193633079
4√n 62.938040286261
5√n 27.487204457739

Divisors of 15691081

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 -15691080
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 15691081 can be divided by 4 positive divisors. The sum of these divisors (counting 15691081) is 1, the average is 0.25.

Base conversion 15691081

Base System Value
2 Binary 111011110110110101001001
3 Ternary 1002112012010011
4 Quaternary 323312311021
5 Quinary 13004103311
6 Senary 1320151521
8 Octal 73666511
10 Decimal 15691081
12 Duodecimal 53085a1
16 Hexadecimal ef6d49
20 Vigesimal 4i17e1
36 Base36 9cbbd

Cryptographic Hash Functions

md5 aacc65169e2cbd2ed6d6c043146ab961
sha1 551c14fed932eeba20f961213fb09aff96f1bee5
sha256 f2ebf0c34e62a4d8634169357e08e84284cb707d5616e65dd59721ec9153920b
sha512 240d949cb36b929bddddc3f918f0d6ef2258b4283b40db72792e4100d230431fd26f04e63cc4d9a19ebd92417d574ec8964283dc1ab01042471e29bfbd476dca
ripemd-160 058baa522b6912604d297cfbbc1870063707db4f

15691081 as geometric shapes

Circle

Radius = n
Diameter 31382162
Circumference 98589969.592965
Area 7.7349159933537E+14

Sphere

Radius = n
Volume 1.6182559117321E+22
Surface area 3.0939663973415E+15
Circumference 98589969.592965

Square

Length = n
Perimeter 62764324
Area 246210022948561
Diagonal 22190539.558495

Cube

Length = n
Surface area 1477260137691366
Volume 3.8633014130977E+21
Space diagonal 27177749.517679

Equilateral Triangle

Length = n
Perimeter 47073243
Area 1.066120672699E+14
Altitude 13588874.758839

Triangular Pyramid

Length = n
Surface area 1.066120672699E+14
Volume 4.5529443782816E+20
Height 7396846.5194983