28993891 (number)

28993891 is an odd 8-digits composite number following 28993890 and preceding 28993892. In scientific notation, it is written as 2.8993891 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 27036288 positive integers (up to 28993891) that are relatively prime to 28993891.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-three thousand eight hundred ninety-one

Notation

Scientific notation 2.8993891 × 10^7
Engineering notation 2.8993891 × 10^6

Prime Factorization of 28993891

Prime Factorization 17 × 109 × 15647

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28993891
Product of the distinct prime numbers

The prime factorization of 28993891 is 17 × 109 × 15647. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 2, 60, 95, 449, 155, 9092, 8492, 16505, 18020, 412874, 851530, 8384042, 3581476, 15906906, 63527170, 664348891, 318253770, 2730828591, 5460523251

Basic calculations (n = 28993891)

Multiplication

n×y
n×2 57987782
n×3 86981673
n×4 115975564
n×5 144969455

Division

n÷y
n÷2 14496945.5
n÷3 9664630.3333333
n÷3 7248472.75
n÷5 5798778.2

Exponentiation

ny
n2 840645715319881
n3 2.4373590239602E+22
n4 7.0668521868567E+29
n5 2.0489554201884E+37

Nth Root

y√n
2√n 5384.5975708497
3√n 307.21010773921
4√n 73.379817190081
5√n 31.078589516495

Divisors of 28993891

1, 17, 109, 1853, 15647, 265999, 1705523, 28993891

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 -28993890
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 28993891 can be divided by 8 positive divisors. The sum of these divisors (counting 28993891) is 1, the average is 0.125.

Base conversion 28993891

Base System Value
2 Binary 1101110100110100101100011
3 Ternary 2000120001010211
4 Quaternary 1232212211203
5 Quinary 24410301031
6 Senary 2513234551
8 Octal 156464543
10 Decimal 28993891
12 Duodecimal 9862a57
16 Hexadecimal 1ba6963
20 Vigesimal 9144eb
36 Base36 h9ftv

Cryptographic Hash Functions

md5 1bfd4300507dba55df26b994314ed2c8
sha1 40c73033c750870e9d6d8bb3083a3e510d5463f2
sha256 49b95c8cdfcce6c819fe068f130ebd5ba1d022975aa97e2926815b5a3de72b79
sha512 71cfa915b72c32eea0da1d5ae8c6726a77ea0448466f6d785402a5c98d45aa3ea85a4c6de890d7639edf9e157e8cd11c317a0ad513ca4302e8927ddf195876d6
ripemd-160 02863df2a023b3aeaa7e3e558b2d532180fd6445

28993891 as geometric shapes

Circle

Radius = n
Diameter 57987782
Circumference 182173989.92917
Area 2.6409664035207E+15

Sphere

Radius = n
Volume 1.0209585605112E+23
Surface area 1.0563865614083E+16
Circumference 182173989.92917

Square

Length = n
Perimeter 115975564
Area 840645715319881
Diagonal 41003553.878167

Cube

Length = n
Surface area 5043874291919286
Volume 2.4373590239602E+22
Space diagonal 50218892.321114

Equilateral Triangle

Length = n
Perimeter 86981673
Area 3.6401027252478E+14
Altitude 25109446.160557

Triangular Pyramid

Length = n
Surface area 3.6401027252478E+14
Volume 2.8724551567141E+21
Height 13667851.292722