15661387 (number)

15661387 is an odd 8-digits composite number following 15661386 and preceding 15661388. In scientific notation, it is written as 1.5661387 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 13016160 positive integers (up to 15661387) that are relatively prime to 15661387.

Interesting facts

Basic properties

Name

Name fifteen million six hundred sixty-one thousand three hundred eighty-seven

Notation

Scientific notation 1.5661387 × 10^7
Engineering notation 1.5661387 × 10^6

Prime Factorization of 15661387

Prime Factorization 7 × 47 × 263 × 181

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 15661387
Product of the distinct prime numbers

The prime factorization of 15661387 is 7 × 47 × 263 × 181. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 8, 15, 201, 819, 4785, 6030, 34445, 40925, 377089, 303834, 3815836, 3293441, 31206806, 39143799, 97539231, 356117173, 7720932389, 690961427

Basic calculations (n = 15661387)

Multiplication

n×y
n×2 31322774
n×3 46984161
n×4 62645548
n×5 78306935

Division

n÷y
n÷2 7830693.5
n÷3 5220462.3333333
n÷3 3915346.75
n÷5 3132277.4

Exponentiation

ny
n2 245279042763769
n3 3.8414100117129E+21
n4 6.0161808819111E+28
n5 9.4221737053611E+35

Nth Root

y√n
2√n 3957.4470305994
3√n 250.19391355125
4√n 62.908242946369
5√n 27.476793147131

Divisors of 15661387

1, 7, 47, 181, 263, 329, 1267, 1841, 8507, 12361, 47603, 59549, 86527, 333221, 2237341, 15661387

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15661386
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15661387 can be divided by 16 positive divisors. The sum of these divisors (counting 15661387) is 1, the average is 0.0625.

Base conversion 15661387

Base System Value
2 Binary 111011101111100101001011
3 Ternary 1002110200101101
4 Quaternary 323233211023
5 Quinary 13002131022
6 Senary 1315402231
8 Octal 73574513
10 Decimal 15661387
12 Duodecimal 52b3377
16 Hexadecimal eef94b
20 Vigesimal 4hhd97
36 Base36 9boej

Cryptographic Hash Functions

md5 500223ae8dc2ef5ac3b26a4508258c49
sha1 829ed7e1bd890ca845ebac9ac1fd008872c15dbe
sha256 ff5e781112c71b6e1193b88c8450c7aa230234f4c62122cc25541994fcef06b8
sha512 6adbd159468d5e4e88c4b8f5ae567a2d7279e3837085408974035e1f90d81a75d6cade7c3dd1af63561c46d6d68b47b917df96c8a9a36435234fc694b655dab4
ripemd-160 ba7ccbc2d788584079a1cbdb980888956bc81d7f

15661387 as geometric shapes

Circle

Radius = n
Diameter 31322774
Circumference 98403396.688453
Area 7.7056683882619E+14

Sphere

Radius = n
Volume 1.6090860629632E+22
Surface area 3.0822673553048E+15
Circumference 98403396.688453

Square

Length = n
Perimeter 62645548
Area 245279042763769
Diagonal 22148545.900974

Cube

Length = n
Surface area 1471674256582614
Volume 3.8414100117129E+21
Space diagonal 27126318.000999

Equilateral Triangle

Length = n
Perimeter 46984161
Area 1.0620894102468E+14
Altitude 13563159.000499

Triangular Pyramid

Length = n
Surface area 1.0620894102468E+14
Volume 4.5271451143335E+20
Height 7382848.6336579