28731685 (number)

28731685 is an odd 8-digits composite number following 28731684 and preceding 28731686. In scientific notation, it is written as 2.8731685 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 22985344 positive integers (up to 28731685) that are relatively prime to 28731685.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred thirty-one thousand six hundred eighty-five

Notation

Scientific notation 2.8731685 × 10^7
Engineering notation 2.8731685 × 10^6

Prime Factorization of 28731685

Prime Factorization 5 × 5746337

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28731685
Product of the distinct prime numbers

The prime factorization of 28731685 is 5 × 5746337. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28731685)

Multiplication

n×y
n×2 57463370
n×3 86195055
n×4 114926740
n×5 143658425

Division

n÷y
n÷2 14365842.5
n÷3 9577228.3333333
n÷3 7182921.25
n÷5 5746337

Exponentiation

ny
n2 825509722939225
n3 2.3718285323927E+22
n4 6.814663026672E+29
n5 1.9579675146349E+37

Nth Root

y√n
2√n 5360.19449274
3√n 306.2812179755
4√n 73.213349143035
5√n 31.022173275218

Divisors of 28731685

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 -28731684
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 28731685 can be divided by 4 positive divisors. The sum of these divisors (counting 28731685) is 1, the average is 0.25.

Base conversion 28731685

Base System Value
2 Binary 1101101100110100100100101
3 Ternary 2000001201110111
4 Quaternary 1231212210211
5 Quinary 24323403220
6 Senary 2503453021
8 Octal 155464445
10 Decimal 28731685
12 Duodecimal 9757171
16 Hexadecimal 1b66925
20 Vigesimal 8jb945
36 Base36 h3tid

Cryptographic Hash Functions

md5 0ca3688f935ff7147ca5eeb245ca9127
sha1 8ada7eeedec13530e486c5bce1874beb8599b7c3
sha256 85975b36610693a9213fb65dd66e610581481aad920e34c3a9b732a380790e40
sha512 85ec6b559c788a3c67072c0d204cb39ac5cee77077bbeebe828fc7aedbf00162fd36724308be7de9a74394313322cd89b6c6d91a9442c1ee5048efc119e668bb
ripemd-160 34ea3a60d67da0ba6bb6cce8f1a5f033f0ce375a

28731685 as geometric shapes

Circle

Radius = n
Diameter 57463370
Circumference 180526501.04251
Area 2.5934152810528E+15

Sphere

Radius = n
Volume 9.9350921239195E+22
Surface area 1.0373661124211E+16
Circumference 180526501.04251

Square

Length = n
Perimeter 114926740
Area 825509722939225
Diagonal 40632738.596832

Cube

Length = n
Surface area 4953058337635350
Volume 2.3718285323927E+22
Space diagonal 49764738.207065

Equilateral Triangle

Length = n
Perimeter 86195055
Area 3.5745619556821E+14
Altitude 24882369.103532

Triangular Pyramid

Length = n
Surface area 3.5745619556821E+14
Volume 2.7952267317777E+21
Height 13544246.198944