28831921 (number)

28831921 is an odd 8-digits composite number following 28831920 and preceding 28831922. In scientific notation, it is written as 2.8831921 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 28370160 positive integers (up to 28831921) that are relatively prime to 28831921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8831921 × 10^7
Engineering notation 2.8831921 × 10^6

Prime Factorization of 28831921

Prime Factorization 127 × 131 × 1733

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28831921
Product of the distinct prime numbers

The prime factorization of 28831921 is 127 × 131 × 1733. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 6, 25, 15, 454, 958, 9400, 3709, 27357, 41355, 162436, 680980, 1234109, 2613047, 60636378, 91643439, 584511970, 95671030, 6313416503, 5816944200

Basic calculations (n = 28831921)

Multiplication

n×y
n×2 57663842
n×3 86495763
n×4 115327684
n×5 144159605

Division

n÷y
n÷2 14415960.5
n÷3 9610640.3333333
n÷3 7207980.25
n÷5 5766384.2

Exponentiation

ny
n2 831279668550241
n3 2.3967389732547E+22
n4 6.91025887345E+29
n5 1.9923603792886E+37

Nth Root

y√n
2√n 5369.5363859462
3√n 306.6369781961
4√n 73.277120480722
5√n 31.043788494322

Divisors of 28831921

1, 127, 131, 1733, 16637, 220091, 227023, 28831921

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 -28831920
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 28831921 can be divided by 8 positive divisors. The sum of these divisors (counting 28831921) is 1, the average is 0.125.

Base conversion 28831921

Base System Value
2 Binary 1101101111111000010110001
3 Ternary 2000020210221221
4 Quaternary 1231333002301
5 Quinary 24340110141
6 Senary 2505545041
8 Octal 155770261
10 Decimal 28831921
12 Duodecimal 97a5181
16 Hexadecimal 1b7f0b1
20 Vigesimal 903jg1
36 Base36 h5yup

Cryptographic Hash Functions

md5 69c5e12314cc2503983f45f37153af55
sha1 000957f48a3d4b930d50e73324c2b65dce859933
sha256 824185fcead00dc3b26c3102d09836f8746a90927f3acbc83fe1be73e3a95849
sha512 57caa553f7b00586265df41ab314540fa184e789c94ac7b9d98949e6f2ef5466aa949b0426df82b61b38ff2d568ac2bfcd9bf3897770bad3dad96874f23beb3e
ripemd-160 947d4f6b1d113388e8120e3b02a01a6e1bba3c7c

28831921 as geometric shapes

Circle

Radius = n
Diameter 57663842
Circumference 181156302.40496
Area 2.611542099796E+15

Sphere

Radius = n
Volume 1.0039436734599E+23
Surface area 1.0446168399184E+16
Circumference 181156302.40496

Square

Length = n
Perimeter 115327684
Area 831279668550241
Diagonal 40774493.70747

Cube

Length = n
Surface area 4987678011301446
Volume 2.3967389732547E+22
Space diagonal 49938352.051812

Equilateral Triangle

Length = n
Perimeter 86495763
Area 3.5995465530701E+14
Altitude 24969176.025906

Triangular Pyramid

Length = n
Surface area 3.5995465530701E+14
Volume 2.8245839678708E+21
Height 13591497.90249