28393921 (number)

28393921 is an odd 8-digits composite number following 28393920 and preceding 28393922. In scientific notation, it is written as 2.8393921 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 28051920 positive integers (up to 28393921) that are relatively prime to 28393921.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred ninety-three thousand nine hundred twenty-one

Notation

Scientific notation 2.8393921 × 10^7
Engineering notation 2.8393921 × 10^6

Prime Factorization of 28393921

Prime Factorization 157 × 811 × 223

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28393921
Product of the distinct prime numbers

The prime factorization of 28393921 is 157 × 811 × 223. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 7, 76, 57, 817, 589, 1725, 7487, 17511, 29607, 30074, 818656, 218994, 2180579, 61131817, 50341446, 615509496, 21389807, 8986967461, 4528564984

Basic calculations (n = 28393921)

Multiplication

n×y
n×2 56787842
n×3 85181763
n×4 113575684
n×5 141969605

Division

n÷y
n÷2 14196960.5
n÷3 9464640.3333333
n÷3 7098480.25
n÷5 5678784.2

Exponentiation

ny
n2 806214749754241
n3 2.2891597913557E+22
n4 6.4998222272129E+29
n5 1.8455543883353E+37

Nth Root

y√n
2√n 5328.5946552539
3√n 305.0762901517
4√n 72.997223613326
5√n 30.94888975224

Divisors of 28393921

1, 157, 223, 811, 35011, 127327, 180853, 28393921

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28393920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28393921 can be divided by 8 positive divisors. The sum of these divisors (counting 28393921) is 1, the average is 0.125.

Base conversion 28393921

Base System Value
2 Binary 1101100010100000111000001
3 Ternary 1222102120010201
4 Quaternary 1230110013001
5 Quinary 24232101141
6 Senary 2452325201
8 Octal 154240701
10 Decimal 28393921
12 Duodecimal 9613801
16 Hexadecimal 1b141c1
20 Vigesimal 8h94g1
36 Base36 gwkw1

Cryptographic Hash Functions

md5 d86cbf50d1b8bb21af77a6ec4170c304
sha1 dc293c2b2e53cd74ed4e621312778dfab5879715
sha256 4e3bcf61c4da3b1c6e0a553bd64ae6fb2c366548048e2505482ba22889625b04
sha512 b8fb4408ef8e77520db8390c096607be97841b1a530057df399a842c07cc296c00870e9f3f94ed003e318baecc2bbfb98e9850d691a4c085c9a2a517c0608896
ripemd-160 4679bf00f29ebe6fe9f57d3aea0540febb4d0e69

28393921 as geometric shapes

Circle

Radius = n
Diameter 56787842
Circumference 178404267.24042
Area 2.5327983350437E+15

Sphere

Radius = n
Volume 9.5888101112215E+22
Surface area 1.0131193340175E+16
Circumference 178404267.24042

Square

Length = n
Perimeter 113575684
Area 806214749754241
Diagonal 40155068.16715

Cube

Length = n
Surface area 4837288498525446
Volume 2.2891597913557E+22
Space diagonal 49179713.798097

Equilateral Triangle

Length = n
Perimeter 85181763
Area 3.4910122709644E+14
Altitude 24589856.899048

Triangular Pyramid

Length = n
Surface area 3.4910122709644E+14
Volume 2.6978006861453E+21
Height 13385022.722383