28978023 (number)

28978023 is an odd 8-digits composite number following 28978022 and preceding 28978024. In scientific notation, it is written as 2.8978023 × 10^7. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 19318680 positive integers (up to 28978023) that are relatively prime to 28978023.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred seventy-eight thousand twenty-three

Notation

Scientific notation 2.8978023 × 10^7
Engineering notation 2.8978023 × 10^6

Prime Factorization of 28978023

Prime Factorization 3 × 9659341

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28978023
Product of the distinct prime numbers

The prime factorization of 28978023 is 3 × 9659341. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28978023)

Multiplication

n×y
n×2 57956046
n×3 86934069
n×4 115912092
n×5 144890115

Division

n÷y
n÷2 14489011.5
n÷3 9659341
n÷3 7244505.75
n÷5 5795604.6

Exponentiation

ny
n2 839725816988529
n3 2.4333594038387E+22
n4 7.0513944771705E+29
n5 2.0433547134152E+37

Nth Root

y√n
2√n 5383.1239071751
3√n 307.15405340731
4√n 73.369775160996
5√n 31.075186985576

Divisors of 28978023

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 -28978022
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 28978023 can be divided by 4 positive divisors. The sum of these divisors (counting 28978023) is 1, the average is 0.25.

Base conversion 28978023

Base System Value
2 Binary 1101110100010101101100111
3 Ternary 2000112020101010
4 Quaternary 1232202231213
5 Quinary 24404244043
6 Senary 2513033303
8 Octal 156425547
10 Decimal 28978023
12 Duodecimal 9855833
16 Hexadecimal 1ba2b67
20 Vigesimal 912513
36 Base36 h93l3

Cryptographic Hash Functions

md5 42d9f572020bdac6411231b6dec94019
sha1 20e886199dff8146f5385894b6136e23b8f60f27
sha256 6a1d0f8a52c06922049a45eb693263f175c569dcc64be4c64a87828995f7e091
sha512 26106aaec33908782d4d4a8d47f9c39bff25e3733b2fc704616bf8a1a03cece69ca30712d74bb8839296f7eeb1a725a645c771678caa59ed15d9ff8f1241a995
ripemd-160 f71bd43990d7ec2711381e9e426afb4be930a520

28978023 as geometric shapes

Circle

Radius = n
Diameter 57956046
Circumference 182074288.34471
Area 2.6380764576808E+15

Sphere

Radius = n
Volume 1.0192832035525E+23
Surface area 1.0552305830723E+16
Circumference 182074288.34471

Square

Length = n
Perimeter 115912092
Area 839725816988529
Diagonal 40981113.137359

Cube

Length = n
Surface area 5038354901931174
Volume 2.4333594038387E+22
Space diagonal 50191408.138899

Equilateral Triangle

Length = n
Perimeter 86934069
Area 3.6361194486285E+14
Altitude 25095704.06945

Triangular Pyramid

Length = n
Surface area 3.6361194486285E+14
Volume 2.8677415591974E+21
Height 13660371.045786