28892721 (number)

28892721 is an odd 8-digits composite number following 28892720 and preceding 28892722. In scientific notation, it is written as 2.8892721 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 16163520 positive integers (up to 28892721) that are relatively prime to 28892721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8892721 × 10^7
Engineering notation 2.8892721 × 10^6

Prime Factorization of 28892721

Prime Factorization 11 × 3 × 13 × 67349

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28892721
Product of the distinct prime numbers

The prime factorization of 28892721 is 11 × 3 × 13 × 67349. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 2, 9, 513, 784, 9748, 75, 28371, 62250, 952185, 422970, 2119443, 7701984, 39960899, 17922210, 963189230, 229459918, 488117760, 1321015734

Basic calculations (n = 28892721)

Multiplication

n×y
n×2 57785442
n×3 86678163
n×4 115570884
n×5 144463605

Division

n÷y
n÷2 14446360.5
n÷3 9630907
n÷3 7223180.25
n÷5 5778544.2

Exponentiation

ny
n2 834789326783841
n3 2.4119335112543E+22
n4 6.9687322011222E+29
n5 2.0134563521074E+37

Nth Root

y√n
2√n 5375.1949732079
3√n 306.85236953973
4√n 73.315721187259
5√n 31.056870329968

Divisors of 28892721

1, 3, 11, 13, 33, 39, 143, 429, 67349, 202047, 740839, 875537, 2222517, 2626611, 9630907, 28892721

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 -28892720
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 28892721 can be divided by 16 positive divisors. The sum of these divisors (counting 28892721) is 1, the average is 0.0625.

Base conversion 28892721

Base System Value
2 Binary 1101110001101111000110001
3 Ternary 2000100220100210
4 Quaternary 1232031320301
5 Quinary 24344031341
6 Senary 2511134333
8 Octal 156157061
10 Decimal 28892721
12 Duodecimal 98143a9
16 Hexadecimal 1b8de31
20 Vigesimal 90bbg1
36 Base36 h79rl

Cryptographic Hash Functions

md5 de537f3f780e5ffe67a0c0a1fe962197
sha1 0582837606287409b1b64c33eede0ceb410bc99f
sha256 43f6372e56c9df05962d90021b2c877d3221520d226a3c788bd3071df5724292
sha512 7c75bb8bfffa523f4c9bf5377d1cdc562aaaf97b6e573ee01029692d30b7ccc4402d4c7a8f53347e245323d3b49616e9a710b4cafcaac2081998205d9fb6dc4b
ripemd-160 3351724d1397b557ccf09a9e2cf5abe6c36de077

28892721 as geometric shapes

Circle

Radius = n
Diameter 57785442
Circumference 181538320.07164
Area 2.6225680163193E+15

Sphere

Radius = n
Volume 1.0103083466538E+23
Surface area 1.0490272065277E+16
Circumference 181538320.07164

Square

Length = n
Perimeter 115570884
Area 834789326783841
Diagonal 40860477.892062

Cube

Length = n
Surface area 5008735960703046
Volume 2.4119335112543E+22
Space diagonal 50043660.740912

Equilateral Triangle

Length = n
Perimeter 86678163
Area 3.6147438190146E+14
Altitude 25021830.370456

Triangular Pyramid

Length = n
Surface area 3.6147438190146E+14
Volume 2.8424909026317E+21
Height 13620159.297354