28981908 (number)

28981908 is an even 8-digits composite number following 28981907 and preceding 28981909. In scientific notation, it is written as 2.8981908 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 9580032 positive integers (up to 28981908) that are relatively prime to 28981908.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred eighty-one thousand nine hundred eight

Notation

Scientific notation 2.8981908 × 10^7
Engineering notation 2.8981908 × 10^6

Prime Factorization of 28981908

Prime Factorization 2 × 2 × 27 × 127 × 2113

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14490954
Product of the distinct prime numbers

The prime factorization of 28981908 is 2 × 2 × 27 × 127 × 2113. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 4, 72, 58, 643, 695, 6243, 9279, 87216, 98836, 751997, 43147, 5470616, 3351648, 12114304, 46495699, 530260069, 836591052, 7937025167, 5528993946

Basic calculations (n = 28981908)

Multiplication

n×y
n×2 57963816
n×3 86945724
n×4 115927632
n×5 144909540

Division

n÷y
n÷2 14490954
n÷3 9660636
n÷3 7245477
n÷5 5796381.6

Exponentiation

ny
n2 839950991320464
n3 2.4343382354958E+22
n4 7.0551766782023E+29
n5 2.044724814114E+37

Nth Root

y√n
2√n 5383.4847450327
3√n 307.1677792134
4√n 73.372234155931
5√n 31.076020173042

Divisors of 28981908

1, 2, 4, 27, 54, 108, 127, 254, 508, 2113, 3429, 4226, 6858, 8452, 13716, 57051, 114102, 228204, 268351, 536702, 1073404, 7245477, 14490954, 28981908

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 -28981907
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 28981908 can be divided by 24 positive divisors. The sum of these divisors (counting 28981908) is 1, the average is 0.041666666666667.

Base conversion 28981908

Base System Value
2 Binary 1101110100011101010010100
3 Ternary 2000112102201000
4 Quaternary 1232203222110
5 Quinary 24404410113
6 Senary 2513103300
8 Octal 156435224
10 Decimal 28981908
12 Duodecimal 9857b30
16 Hexadecimal 1ba3a94
20 Vigesimal 912ef8
36 Base36 h96l0

Cryptographic Hash Functions

md5 7454ad7678662ff639fb0b26a9cfcd3c
sha1 2600c4760e0e7d3e073dc4c6211f0e3ba0f6520e
sha256 af08f51828837c25a5fd12e11af3be353e5a9a9b61b789cf4d4a97fa2d830223
sha512 069c5f550511f7a6bf79253bf3345cd83cb86337ce021236812c6ae1d2434753294a4ba1d27fde87c78c5433fff5e371904629cf8430b027258d77f6bdf0b670
ripemd-160 da63c77279ee21fdb135bab201e2ec8942963105

28981908 as geometric shapes

Circle

Radius = n
Diameter 57963816
Circumference 182098698.51963
Area 2.6387838637078E+15

Sphere

Radius = n
Volume 1.0196932155982E+23
Surface area 1.0555135454831E+16
Circumference 182098698.51963

Square

Length = n
Perimeter 115927632
Area 839950991320464
Diagonal 40986607.357049

Cube

Length = n
Surface area 5039705947922784
Volume 2.4343382354958E+22
Space diagonal 50198137.156287

Equilateral Triangle

Length = n
Perimeter 86945724
Area 3.6370944820872E+14
Altitude 25099068.578143

Triangular Pyramid

Length = n
Surface area 3.6370944820872E+14
Volume 2.868895123368E+21
Height 13662202.45235