81553485 (number)

81553485 is an odd 8-digits composite number following 81553484 and preceding 81553486. In scientific notation, it is written as 8.1553485 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors. There are 39326976 positive integers (up to 81553485) that are relatively prime to 81553485.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-three thousand four hundred eighty-five

Notation

Scientific notation 8.1553485 × 10^7
Engineering notation 8.1553485 × 10^6

Prime Factorization of 81553485

Prime Factorization 15 × 13 × 13 × 53 × 607

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6273345
Product of the distinct prime numbers

The prime factorization of 81553485 is 15 × 13 × 13 × 53 × 607. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 8, 57, 95, 496, 221, 1699, 6489, 89539, 97165, 140208, 90365, 5811593, 5805986, 6919301, 28442027, 153760208, 955495302, 6310288422, 9811317507

Basic calculations (n = 81553485)

Multiplication

n×y
n×2 163106970
n×3 244660455
n×4 326213940
n×5 407767425

Division

n÷y
n÷2 40776742.5
n÷3 27184495
n÷3 20388371.25
n÷5 16310697

Exponentiation

ny
n2 6650970915645225
n3 5.4240985680451E+23
n4 4.4235414120759E+31
n5 3.6075521819661E+39

Nth Root

y√n
2√n 9030.6968169682
3√n 433.65814535994
4√n 95.029978517141
5√n 38.21980833923

Divisors of 81553485

1, 13, 15, 53, 169, 195, 607, 689, 795, 2535, 7891, 8957, 9105, 10335, 32171, 102583, 118365, 134355, 418223, 482565, 1538745, 5436899, 6273345, 81553485

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81553484
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81553485 can be divided by 24 positive divisors. The sum of these divisors (counting 81553485) is 1, the average is 0.041666666666667.

Base conversion 81553485

Base System Value
2 Binary 100110111000110100001001101
3 Ternary 12200110100100110
4 Quaternary 10313012201031
5 Quinary 131334202420
6 Senary 12031550233
8 Octal 467064115
10 Decimal 81553485
12 Duodecimal 2338b379
16 Hexadecimal 4dc684d
20 Vigesimal 159e3e5
36 Base36 1cjz2l

Cryptographic Hash Functions

md5 d318f90b4fa2ef150dfb7cedc32eb3ab
sha1 ca6c7e5ccfb6d12e9eb9f6d3ee88f7f068fa6982
sha256 e0c8cebbc1fab957432ef4d7e4a80f0756867debe39107c3928f4b63f7d8b1b7
sha512 5fb9fa22764a58c8bc07c7d2421eeaa215db15ad1852a36201b12034e5d2755a286ea8724a8ac66b7718a310d4820caeefedac27292d4fe7d656475614e6c8e0
ripemd-160 95271ec0e88982556bf6c267bfd4aa95b0085232

81553485 as geometric shapes

Circle

Radius = n
Diameter 163106970
Circumference 512415658.70129
Area 2.089464136783E+16

Sphere

Radius = n
Volume 2.2720410951623E+24
Surface area 8.3578565471322E+16
Circumference 512415658.70129

Square

Length = n
Perimeter 326213940
Area 6650970915645225
Diagonal 115334044.54579

Cube

Length = n
Surface area 39905825493871350
Volume 5.4240985680451E+23
Space diagonal 141254779.55431

Equilateral Triangle

Length = n
Perimeter 244660455
Area 2.8799548863901E+15
Altitude 70627389.777153

Triangular Pyramid

Length = n
Surface area 2.8799548863901E+15
Volume 6.3923614654815E+22
Height 38444681.515264