28903721 (number)

28903721 is an odd 8-digits composite number following 28903720 and preceding 28903722. In scientific notation, it is written as 2.8903721 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 22522320 positive integers (up to 28903721) that are relatively prime to 28903721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8903721 × 10^7
Engineering notation 2.8903721 × 10^6

Prime Factorization of 28903721

Prime Factorization 7 × 11 × 375373

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28903721
Product of the distinct prime numbers

The prime factorization of 28903721 is 7 × 11 × 375373. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28903721)

Multiplication

n×y
n×2 57807442
n×3 86711163
n×4 115614884
n×5 144518605

Division

n÷y
n÷2 14451860.5
n÷3 9634573.6666667
n÷3 7225930.25
n÷5 5780744.2

Exponentiation

ny
n2 835425087645841
n3 2.4146893649716E+22
n4 6.9793507706806E+29
n5 2.0172920743689E+37

Nth Root

y√n
2√n 5376.2180945345
3√n 306.89130608017
4√n 73.322698358247
5√n 31.059234756359

Divisors of 28903721

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 -28903720
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 28903721 can be divided by 8 positive divisors. The sum of these divisors (counting 28903721) is 1, the average is 0.125.

Base conversion 28903721

Base System Value
2 Binary 1101110010000100100101001
3 Ternary 2000101110110012
4 Quaternary 1232100210221
5 Quinary 24344404341
6 Senary 2511301305
8 Octal 156204451
10 Decimal 28903721
12 Duodecimal 981a835
16 Hexadecimal 1b90929
20 Vigesimal 90cj61
36 Base36 h7i95

Cryptographic Hash Functions

md5 99da13b789ebacb0f2caa5fc60f68dc6
sha1 8efed43ffcc74a891ecf778fc761c05541170e75
sha256 e75d431c2ea7b81820ae2e06a2392e6ef9adc80079363efe3f130f360647aa8b
sha512 02282a36f77470597bb65f5d75a06d754d56840888e30c0f9ccd5f25c4346917179cfea41656c9f68fd148ffa531c1ae53daa1e4da7abc564ab935ea08724aa4
ripemd-160 f8e659e08739c4af473a3e83bef7925961eb86d9

28903721 as geometric shapes

Circle

Radius = n
Diameter 57807442
Circumference 181607435.11002
Area 2.6245653179728E+15

Sphere

Radius = n
Volume 1.0114627159595E+23
Surface area 1.0498261271891E+16
Circumference 181607435.11002

Square

Length = n
Perimeter 115614884
Area 835425087645841
Diagonal 40876034.241248

Cube

Length = n
Surface area 5012550525875046
Volume 2.4146893649716E+22
Space diagonal 50062713.299796

Equilateral Triangle

Length = n
Perimeter 86711163
Area 3.6174967443007E+14
Altitude 25031356.649898

Triangular Pyramid

Length = n
Surface area 3.6174967443007E+14
Volume 2.8457387073841E+21
Height 13625344.747083