28772721 (number)

28772721 is an odd 8-digits composite number following 28772720 and preceding 28772722. In scientific notation, it is written as 2.8772721 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 17842176 positive integers (up to 28772721) that are relatively prime to 28772721.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred seventy-two thousand seven hundred twenty-one

Notation

Scientific notation 2.8772721 × 10^7
Engineering notation 2.8772721 × 10^6

Prime Factorization of 28772721

Prime Factorization 9 × 17 × 89 × 2113

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28772721
Product of the distinct prime numbers

The prime factorization of 28772721 is 9 × 17 × 89 × 2113. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 67, 61, 849, 844, 976, 3435, 87908, 25374, 629957, 339317, 7625459, 1675736, 84383793, 3161119, 342626918, 587642846, 3768167787, 6979814578

Basic calculations (n = 28772721)

Multiplication

n×y
n×2 57545442
n×3 86318163
n×4 115090884
n×5 143863605

Division

n÷y
n÷2 14386360.5
n÷3 9590907
n÷3 7193180.25
n÷5 5754544.2

Exponentiation

ny
n2 827869473743841
n3 2.3820057392448E+22
n4 6.853678655569E+29
n5 1.9719898378034E+37

Nth Root

y√n
2√n 5364.0209731134
3√n 306.42696389014
4√n 73.239476876295
5√n 31.031029694506

Divisors of 28772721

1, 9, 17, 89, 153, 801, 1513, 2113, 13617, 19017, 35921, 188057, 323289, 1692513, 3196969, 28772721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28772720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28772721 can be divided by 16 positive divisors. The sum of these divisors (counting 28772721) is 1, the average is 0.0625.

Base conversion 28772721

Base System Value
2 Binary 1101101110000100101110001
3 Ternary 2000010210202100
4 Quaternary 1231300211301
5 Quinary 24331211341
6 Senary 2504411013
8 Octal 155604561
10 Decimal 28772721
12 Duodecimal 9776a69
16 Hexadecimal 1b70971
20 Vigesimal 8jgbg1
36 Base36 h4p69

Cryptographic Hash Functions

md5 9a562ca02caf196cee3a6328e4813639
sha1 c4f109e8cdf54df6930d7d5086ce442e0cd0cc18
sha256 4a93a69074764177d741852606e807ff5f9c217546386052d61373e039e0bd25
sha512 06e6e265dd7ae108e9de94b7534117601de957690522b166aa50d159ba0ca98f71c4e48aba585891ca3d317d6c6fae72a91c4dfc4f6def40f5bcc02abfbe6ef9
ripemd-160 c31a56926d24f5407121db1646796cf2ba9b4619

28772721 as geometric shapes

Circle

Radius = n
Diameter 57545442
Circumference 180784337.83478
Area 2.6008286568449E+15

Sphere

Radius = n
Volume 9.9777223082937E+22
Surface area 1.040331462738E+16
Circumference 180784337.83478

Square

Length = n
Perimeter 115090884
Area 827869473743841
Diagonal 40690772.264577

Cube

Length = n
Surface area 4967216842463046
Volume 2.3820057392448E+22
Space diagonal 49835814.644004

Equilateral Triangle

Length = n
Perimeter 86318163
Area 3.5847799763991E+14
Altitude 24917907.322002

Triangular Pyramid

Length = n
Surface area 3.5847799763991E+14
Volume 2.8072206850755E+21
Height 13563590.754859