28938861 (number)

28938861 is an odd 8-digits composite number following 28938860 and preceding 28938862. In scientific notation, it is written as 2.8938861 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 16405200 positive integers (up to 28938861) that are relatively prime to 28938861.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-eight thousand eight hundred sixty-one

Notation

Scientific notation 2.8938861 × 10^7
Engineering notation 2.8938861 × 10^6

Prime Factorization of 28938861

Prime Factorization 3 × 3 × 49 × 311 × 211

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9646287
Product of the distinct prime numbers

The prime factorization of 28938861 is 3 × 3 × 49 × 311 × 211. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 4, 92, 42, 666, 449, 3841, 8544, 13526, 36522, 579916, 919689, 9292715, 6814141, 74573727, 59030772, 635269857, 706695584, 5257035744, 1710866031

Basic calculations (n = 28938861)

Multiplication

n×y
n×2 57877722
n×3 86816583
n×4 115755444
n×5 144694305

Division

n÷y
n÷2 14469430.5
n÷3 9646287
n÷3 7234715.25
n÷5 5787772.2

Exponentiation

ny
n2 837457675977321
n3 2.4235071278491E+22
n4 7.0133535905334E+29
n5 2.029584647003E+37

Nth Root

y√n
2√n 5379.4851984182
3√n 307.0156244811
4√n 73.344973913815
5√n 31.066783204072

Divisors of 28938861

1, 3, 9, 49, 147, 211, 311, 441, 633, 933, 1899, 2799, 10339, 15239, 31017, 45717, 65621, 93051, 137151, 196863, 590589, 3215429, 9646287, 28938861

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28938860
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28938861 can be divided by 24 positive divisors. The sum of these divisors (counting 28938861) is 1, the average is 0.041666666666667.

Base conversion 28938861

Base System Value
2 Binary 1101110011001001001101101
3 Ternary 2000110020122200
4 Quaternary 1232121021231
5 Quinary 24402020421
6 Senary 2512132113
8 Octal 156311155
10 Decimal 28938861
12 Duodecimal 9837039
16 Hexadecimal 1b9926d
20 Vigesimal 90h731
36 Base36 h89d9

Cryptographic Hash Functions

md5 19d5cd005ea2f0544d75f8e9a96aaae6
sha1 b4ac4ef4df08ac611f8d21b5be8f6414fc7fbf1b
sha256 e8eaf5f9ab2bb02d8f14d5cde3ff215550575c19ff647a2b894aaa8230a0c735
sha512 3ef7425ae8d1417973abad3df97c515dcf9ff337adc6e368b51e8d66cff4220e72fd53f2aca69b3fed2a9bdabd2ddab1170b277217cbb1bceaa63450ed66a52a
ripemd-160 6ea2638c27b814ec2cbd1ed8871bdd1729718c05

28938861 as geometric shapes

Circle

Radius = n
Diameter 57877722
Circumference 181828226.24171
Area 2.6309508825427E+15

Sphere

Radius = n
Volume 1.0151562918364E+23
Surface area 1.0523803530171E+16
Circumference 181828226.24171

Square

Length = n
Perimeter 115755444
Area 837457675977321
Diagonal 40925729.70583

Cube

Length = n
Surface area 5024746055863926
Volume 2.4235071278491E+22
Space diagonal 50123577.565173

Equilateral Triangle

Length = n
Perimeter 86816583
Area 3.6262981099532E+14
Altitude 25061788.782587

Triangular Pyramid

Length = n
Surface area 3.6262981099532E+14
Volume 2.8561305405934E+21
Height 13641909.901943