28931142 (number)

28931142 is an even 8-digits composite number following 28931141 and preceding 28931143. In scientific notation, it is written as 2.8931142 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 9627432 positive integers (up to 28931142) that are relatively prime to 28931142.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand one hundred forty-two

Notation

Scientific notation 2.8931142 × 10^7
Engineering notation 2.8931142 × 10^6

Prime Factorization of 28931142

Prime Factorization 2 × 3 × 643 × 7499

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931142
Product of the distinct prime numbers

The prime factorization of 28931142 is 2 × 3 × 643 × 7499. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 77, 89, 692, 474, 9664, 9276, 47507, 71115, 708166, 130394, 9871388, 948369, 97207825, 83749255, 714971613, 524216368, 5574958806, 2939552929

Basic calculations (n = 28931142)

Multiplication

n×y
n×2 57862284
n×3 86793426
n×4 115724568
n×5 144655710

Division

n÷y
n÷2 14465571
n÷3 9643714
n÷3 7232785.5
n÷5 5786228.4

Exponentiation

ny
n2 837010977424164
n3 2.4215683443417E+22
n4 7.0058737632855E+29
n5 2.0268792867969E+37

Nth Root

y√n
2√n 5378.7677027364
3√n 306.9883248079
4√n 73.34008251111
5√n 31.065125709056

Divisors of 28931142

1, 2, 3, 6, 643, 1286, 1929, 3858, 7499, 14998, 22497, 44994, 4821857, 9643714, 14465571, 28931142

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 -28931141
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 28931142 can be divided by 16 positive divisors. The sum of these divisors (counting 28931142) is 1, the average is 0.0625.

Base conversion 28931142

Base System Value
2 Binary 1101110010111010001000110
3 Ternary 2000102212001210
4 Quaternary 1232113101012
5 Quinary 24401244032
6 Senary 2512032250
8 Octal 156272106
10 Decimal 28931142
12 Duodecimal 9832686
16 Hexadecimal 1b97446
20 Vigesimal 90g7h2
36 Base36 h83eu

Cryptographic Hash Functions

md5 b26da38bfe055e1495560bf2864871a0
sha1 2d6828be0e697b6826030c27dbd78b141a73fe78
sha256 7a481d5fc345083f54df5865366ae2450f479907af426b22a85a244e5b0f25fe
sha512 c8d848e19fe619e30f923875e3a53a9ca0c951010504d50c084f14b70ffa33cabb283ba8ddf7bc85e3e4d5e2354d8f3f6d3514d496a7c69d395924db91b8a353
ripemd-160 2aa275bb3e35b8901147c72d859077ca797576d1

28931142 as geometric shapes

Circle

Radius = n
Diameter 57862284
Circumference 181779726.33433
Area 2.6295475376498E+15

Sphere

Radius = n
Volume 1.0143441760999E+23
Surface area 1.0518190150599E+16
Circumference 181779726.33433

Square

Length = n
Perimeter 115724568
Area 837010977424164
Diagonal 40914813.391342

Cube

Length = n
Surface area 5022065864544984
Volume 2.4215683443417E+22
Space diagonal 50110207.86499

Equilateral Triangle

Length = n
Perimeter 86793426
Area 3.6243638484788E+14
Altitude 25055103.932495

Triangular Pyramid

Length = n
Surface area 3.6243638484788E+14
Volume 2.8538456623179E+21
Height 13638271.130447