1288506985 (number)

1288506985 is an odd 10-digits composite number following 1288506984 and preceding 1288506986. In scientific notation, it is written as 1.288506985 × 10^9. The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors. There are 1008386496 positive integers (up to 1288506985) that are relatively prime to 1288506985.

Interesting facts

Basic properties

Name

Name one billion two hundred eighty-eight million five hundred six thousand nine hundred eighty-five

Notation

Scientific notation 1.288506985 × 10^9
Engineering notation 1.288506985 × 10^9

Prime Factorization of 1288506985

Prime Factorization 5 × 79 × 109 × 29927

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1288506985
Product of the distinct prime numbers

The prime factorization of 1288506985 is 5 × 79 × 109 × 29927. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 74, 80, 982, 447, 4914, 9632, 56854, 26177, 621933, 979502, 8891815, 8715203, 62146932, 42636654, 60063872, 840171081, 9938468128, 8160828078

Basic calculations (n = 1288506985)

Multiplication

n×y
n×2 2577013970
n×3 3865520955
n×4 5154027940
n×5 6442534925

Division

n÷y
n÷2 644253492.5
n÷3 429502328.33333
n÷3 322126746.25
n÷5 257701397

Exponentiation

ny
n2 1660250250393790225
n3 2.1392440444804E+27
n4 2.7564308939326E+36
n5 3.551680460502E+45

Nth Root

y√n
2√n 35895.779487288
3√n 1088.1671030936
4√n 189.46181538053
5√n 66.376959568451

Divisors of 1288506985

1, 5, 79, 109, 395, 545, 8611, 29927, 43055, 149635, 2364233, 3262043, 11821165, 16310215, 257701397, 1288506985

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 -1288506984
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 1288506985 can be divided by 16 positive divisors. The sum of these divisors (counting 1288506985) is 1, the average is 0.0625.

Base conversion 1288506985

Base System Value
2 Binary 1001100110011010000111001101001
3 Ternary 10022210112221021221
4 Quaternary 1030303100321221
5 Quinary 10114324210420
6 Senary 331505102041
8 Octal 11463207151
10 Decimal 1288506985
12 Duodecimal 2bb627921
16 Hexadecimal 4ccd0e69
20 Vigesimal 102d3795
36 Base36 lb56cp

Cryptographic Hash Functions

md5 6db68d8a16d697295c0aa6d7dc0485ad
sha1 03b98848fc646024ff11339b5cfc4c0c3bb14862
sha256 45eb1003b6d0e554697be4fa72f83b0cd9d27429846e138bc011f36376ea4c29
sha512 aeb57f43693fb0cae98e39eace415f1cea8be0a8cdb6d86fd5b169a3730d353f08a962502167ce45278930c4b118a830cb8b85b2a6e7619e7854256afdfb333f
ripemd-160 e478307082c579826871ee8a38b59b027f582edc

1288506985 as geometric shapes

Circle

Radius = n
Diameter 2577013970
Circumference 8095928156.3503
Area 5.2158299897577E+18

Sphere

Radius = n
Volume 8.9608444991671E+27
Surface area 2.0863319959031E+19
Circumference 8095928156.3503

Square

Length = n
Perimeter 5154027940
Area 1660250250393790225
Diagonal 1822224053.3995

Cube

Length = n
Surface area 9.9615015023627E+18
Volume 2.1392440444804E+27
Space diagonal 2231759563.9274

Equilateral Triangle

Length = n
Perimeter 3865520955
Area 7.1890944674025E+17
Altitude 1115879781.9637

Triangular Pyramid

Length = n
Surface area 7.1890944674025E+17
Volume 2.5211232841084E+26
Height 607408017.79982