28930021 (number)

28930021 is an odd 8-digits composite number following 28930020 and preceding 28930022. In scientific notation, it is written as 2.8930021 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 27672172 positive integers (up to 28930021) that are relatively prime to 28930021.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8930021 × 10^7
Engineering notation 2.8930021 × 10^6

Prime Factorization of 28930021

Prime Factorization 23 × 1257827

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28930021
Product of the distinct prime numbers

The prime factorization of 28930021 is 23 × 1257827. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28930021)

Multiplication

n×y
n×2 57860042
n×3 86790063
n×4 115720084
n×5 144650105

Division

n÷y
n÷2 14465010.5
n÷3 9643340.3333333
n÷3 7232505.25
n÷5 5786004.2

Exponentiation

ny
n2 836946115060441
n3 2.4212868684567E+22
n4 7.0047879951476E+29
n5 2.0264866380017E+37

Nth Root

y√n
2√n 5378.6634957023
3√n 306.98435977999
4√n 73.339372070548
5√n 31.064884968157

Divisors of 28930021

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 -28930020
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 28930021 can be divided by 4 positive divisors. The sum of these divisors (counting 28930021) is 1, the average is 0.25.

Base conversion 28930021

Base System Value
2 Binary 1101110010110111111100101
3 Ternary 2000102210112021
4 Quaternary 1232112333211
5 Quinary 24401230041
6 Senary 2512023141
8 Octal 156267745
10 Decimal 28930021
12 Duodecimal 9831ab1
16 Hexadecimal 1b96fe5
20 Vigesimal 90g511
36 Base36 h82jp

Cryptographic Hash Functions

md5 36e7117464b35185bfcf6a3a995c69ca
sha1 efb161f445fc53db77f4db13bab5a78119bb0cfc
sha256 e25a13b7e26e73aa8f5254d5296a310a20645c46d4476229e456821ff83c3907
sha512 a9083307207661352d13eaa9ef05a4fe1088357df74d1cbdfc2ea36095135eeffa1ec7556ac2e70f3dc524c246e2abd5b4fc508e19a3aca32c6193044919762b
ripemd-160 bad751be421eedeb90bd30914178562ead55a034

28930021 as geometric shapes

Circle

Radius = n
Diameter 57860042
Circumference 181772682.8836
Area 2.6293437665244E+15

Sphere

Radius = n
Volume 1.0142262717569E+23
Surface area 1.0517375066098E+16
Circumference 181772682.8836

Square

Length = n
Perimeter 115720084
Area 836946115060441
Diagonal 40913228.057938

Cube

Length = n
Surface area 5021676690362646
Volume 2.4212868684567E+22
Space diagonal 50108266.236035

Equilateral Triangle

Length = n
Perimeter 86790063
Area 3.6240829862052E+14
Altitude 25054133.118017

Triangular Pyramid

Length = n
Surface area 3.6240829862052E+14
Volume 2.8535139398061E+21
Height 13637742.685979