28931291 (number)

28931291 is an odd 8-digits prime number following 28931290 and preceding 28931292. In scientific notation, it is written as 2.8931291 × 10^7. The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors. There are 28931290 positive integers (up to 28931291) that are relatively prime to 28931291.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931291 × 10^7
Engineering notation 2.8931291 × 10^6

Prime Factorization of 28931291

Prime Factorization 28931291

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 28931291
Product of the distinct prime numbers

The prime factorization of 28931291 is 28931291. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28931291)

Multiplication

n×y
n×2 57862582
n×3 86793873
n×4 115725164
n×5 144656455

Division

n÷y
n÷2 14465645.5
n÷3 9643763.6666667
n÷3 7232822.75
n÷5 5786258.2

Exponentiation

ny
n2 837019598926681
n3 2.4216057589251E+22
n4 7.0060180898738E+29
n5 2.026931481094E+37

Nth Root

y√n
2√n 5378.7815534747
3√n 306.98885181996
4√n 73.340176939211
5√n 31.065157707062

Divisors of 28931291

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 28931292
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 14465646
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 5378.7816464326
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999308707
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931291 can be divided by 2 positive divisors. The sum of these divisors (counting 28931291) is 28931292, the average is 14465646.

Base conversion 28931291

Base System Value
2 Binary 1101110010111010011011011
3 Ternary 2000102212021022
4 Quaternary 1232113103123
5 Quinary 24401300131
6 Senary 2512033055
8 Octal 156272333
10 Decimal 28931291
12 Duodecimal 983278b
16 Hexadecimal 1b974db
20 Vigesimal 90g84b
36 Base36 h83iz

Cryptographic Hash Functions

md5 751ee826e82370e4f9b4918e7e974e7c
sha1 7b2adaf85b041ccb43140be1ef8338b9fe24e8ca
sha256 235ebf8cac6d431b6fde96a815c22892de139bfb90a2d22b04e96727cdbd670d
sha512 65231d8e5da9d5effce0e02ca9a8312d7b44a47fa84b6370f1fefbe6a8b15f9a6105c4bfe4f3d6bb027c11a25d5cf5afe6581f42e03b4f220e4a972ddd5fb76e
ripemd-160 31cafc41cb4e7293e4f9f8c29ceb250546ee2ac5

28931291 as geometric shapes

Circle

Radius = n
Diameter 57862582
Circumference 181780662.52894
Area 2.6295746228987E+15

Sphere

Radius = n
Volume 1.014359848284E+23
Surface area 1.0518298491595E+16
Circumference 181780662.52894

Square

Length = n
Perimeter 115725164
Area 837019598926681
Diagonal 40915024.109163

Cube

Length = n
Surface area 5022117593560086
Volume 2.4216057589251E+22
Space diagonal 50110465.94056

Equilateral Triangle

Length = n
Perimeter 86793873
Area 3.6244011806798E+14
Altitude 25055232.97028

Triangular Pyramid

Length = n
Surface area 3.6244011806798E+14
Volume 2.8538897558272E+21
Height 13638341.369721