28977891 (number)

28977891 is an odd 8-digits composite number following 28977890 and preceding 28977892. In scientific notation, it is written as 2.8977891 × 10^7. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 19318592 positive integers (up to 28977891) that are relatively prime to 28977891.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred seventy-seven thousand eight hundred ninety-one

Notation

Scientific notation 2.8977891 × 10^7
Engineering notation 2.8977891 × 10^6

Prime Factorization of 28977891

Prime Factorization 3 × 9659297

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28977891
Product of the distinct prime numbers

The prime factorization of 28977891 is 3 × 9659297. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 6, 49, 75, 519, 754, 2865, 5399, 77033, 86013, 576247, 450861, 2123401, 9972306, 65354738, 2645694, 575058070, 673802622, 2524418915, 9923229595

Basic calculations (n = 28977891)

Multiplication

n×y
n×2 57955782
n×3 86933673
n×4 115911564
n×5 144889455

Division

n÷y
n÷2 14488945.5
n÷3 9659297
n÷3 7244472.75
n÷5 5795578.2

Exponentiation

ny
n2 839718166807881
n3 2.4333261508479E+22
n4 7.0512659966719E+29
n5 2.0433081746356E+37

Nth Root

y√n
2√n 5383.1116466222
3√n 307.15358702632
4√n 73.36969160779
5√n 31.075158674934

Divisors of 28977891

1, 3, 9659297, 28977891

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 -28977890
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 28977891 can be divided by 4 positive divisors. The sum of these divisors (counting 28977891) is 1, the average is 0.25.

Base conversion 28977891

Base System Value
2 Binary 1101110100010101011100011
3 Ternary 2000112020012020
4 Quaternary 1232202223203
5 Quinary 24404243031
6 Senary 2513032523
8 Octal 156425343
10 Decimal 28977891
12 Duodecimal 9855743
16 Hexadecimal 1ba2ae3
20 Vigesimal 9124eb
36 Base36 h93hf

Cryptographic Hash Functions

md5 2e66dc0cc7437693f8aba680fc7291b9
sha1 d892ce78afbb35995ff92cb09e69192be4d22951
sha256 e78e98bdf54c7c54d0d3d32a5830dec6158f59cfa3ab841daeb01ba022c55081
sha512 8379cdd8866d6044f27164b3eeec1b8600dd92c28545a94fee73666ad0ecdd68b31cc5c4b3cff820c702ae19d7f4a1499a6ba0ce197b8fcd57424477fac7da32
ripemd-160 68b5efa90941ff0d4ea3e686529e7bc165c787a2

28977891 as geometric shapes

Circle

Radius = n
Diameter 57955782
Circumference 182073458.96425
Area 2.6380524239295E+15

Sphere

Radius = n
Volume 1.0192692745722E+23
Surface area 1.0552209695718E+16
Circumference 182073458.96425

Square

Length = n
Perimeter 115911564
Area 839718166807881
Diagonal 40980926.461169

Cube

Length = n
Surface area 5038309000847286
Volume 2.4333261508479E+22
Space diagonal 50191179.508193

Equilateral Triangle

Length = n
Perimeter 86933673
Area 3.6360863223746E+14
Altitude 25095589.754096

Triangular Pyramid

Length = n
Surface area 3.6360863223746E+14
Volume 2.8677023701718E+21
Height 13660308.82039