28976721 (number)

28976721 is an odd 8-digits composite number following 28976720 and preceding 28976722. In scientific notation, it is written as 2.8976721 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 18181440 positive integers (up to 28976721) that are relatively prime to 28976721.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred seventy-six thousand seven hundred twenty-one

Notation

Scientific notation 2.8976721 × 10^7
Engineering notation 2.8976721 × 10^6

Prime Factorization of 28976721

Prime Factorization 3 × 17 × 568171

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28976721
Product of the distinct prime numbers

The prime factorization of 28976721 is 3 × 17 × 568171. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 60, 67, 934, 637, 5147, 431, 13564, 70610, 846197, 644254, 4561740, 751343, 93904453, 4810788, 536671416, 628427085, 5091414581, 9138791041

Basic calculations (n = 28976721)

Multiplication

n×y
n×2 57953442
n×3 86930163
n×4 115906884
n×5 144883605

Division

n÷y
n÷2 14488360.5
n÷3 9658907
n÷3 7244180.25
n÷5 5795344.2

Exponentiation

ny
n2 839650359911841
n3 2.4330314216715E+22
n4 7.0501272690008E+29
n5 2.0428957088833E+37

Nth Root

y√n
2√n 5383.0029723194
3√n 307.14945313296
4√n 73.36895101008
5√n 31.074907735189

Divisors of 28976721

1, 3, 17, 51, 568171, 1704513, 9658907, 28976721

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 -28976720
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 28976721 can be divided by 8 positive divisors. The sum of these divisors (counting 28976721) is 1, the average is 0.125.

Base conversion 28976721

Base System Value
2 Binary 1101110100010011001010001
3 Ternary 2000112011120220
4 Quaternary 1232202121101
5 Quinary 24404223341
6 Senary 2513023253
8 Octal 156423121
10 Decimal 28976721
12 Duodecimal 9854b29
16 Hexadecimal 1ba2651
20 Vigesimal 9121g1
36 Base36 h92kx

Cryptographic Hash Functions

md5 bd61e0d829d1df8b80647e53812ceba1
sha1 a88f7c3e8d29e31c290e3844a0cbb1bd7e88165d
sha256 9f0d799be844d5978713875141c64ebddebf34b74f4c97ad04a9a4d3c2c93c49
sha512 c56e7ed1eb9c045f9870e731b51d4911d4e9fe8d396650d8193c6ada91d8ccfd4020744bfe4e3c7baf79e33ba5e758381967faa59a7cf8e0058f05d1e7e2b33b
ripemd-160 7b38776e50ae35d4721a7f5c0b790c974e179ff4

28976721 as geometric shapes

Circle

Radius = n
Diameter 57953442
Circumference 182066107.63744
Area 2.6378394022831E+15

Sphere

Radius = n
Volume 1.0191458187035E+23
Surface area 1.0551357609132E+16
Circumference 182066107.63744

Square

Length = n
Perimeter 115906884
Area 839650359911841
Diagonal 40979271.831301

Cube

Length = n
Surface area 5037902159471046
Volume 2.4330314216715E+22
Space diagonal 50189153.008748

Equilateral Triangle

Length = n
Perimeter 86930163
Area 3.635792709902E+14
Altitude 25094576.504374

Triangular Pyramid

Length = n
Surface area 3.635792709902E+14
Volume 2.8673550285064E+21
Height 13659757.2771