28888921 (number)

28888921 is an odd 8-digits composite number following 28888920 and preceding 28888922. In scientific notation, it is written as 2.8888921 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 28790032 positive integers (up to 28888921) that are relatively prime to 28888921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8888921 × 10^7
Engineering notation 2.8888921 × 10^6

Prime Factorization of 28888921

Prime Factorization 293 × 98597

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28888921
Product of the distinct prime numbers

The prime factorization of 28888921 is 293 × 98597. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 3, 72, 20, 176, 402, 8144, 960, 73467, 20586, 38352, 659372, 2097750, 3435501, 35411142, 72944388, 131153322, 287064757, 103513010, 490490658

Basic calculations (n = 28888921)

Multiplication

n×y
n×2 57777842
n×3 86666763
n×4 115555684
n×5 144444605

Division

n÷y
n÷2 14444460.5
n÷3 9629640.3333333
n÷3 7222230.25
n÷5 5777784.2

Exponentiation

ny
n2 834569756544241
n3 2.4109819765796E+22
n4 6.9650667853831E+29
n5 2.0121326412266E+37

Nth Root

y√n
2√n 5374.8414860347
3√n 306.8389164382
4√n 73.313310428835
5√n 31.056053360764

Divisors of 28888921

1, 293, 98597, 28888921

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28888920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28888921 can be divided by 4 positive divisors. The sum of these divisors (counting 28888921) is 1, the average is 0.25.

Base conversion 28888921

Base System Value
2 Binary 1101110001100111101011001
3 Ternary 2000100201011001
4 Quaternary 1232030331121
5 Quinary 24343421141
6 Senary 2511105001
8 Octal 156147531
10 Decimal 28888921
12 Duodecimal 9812161
16 Hexadecimal 1b8cf59
20 Vigesimal 90b261
36 Base36 h76u1

Cryptographic Hash Functions

md5 22f2f431bac1a3eb4c8533b25542a15a
sha1 8c0102189e22c54bea626ffc3ab100b8f146b7d5
sha256 3c7204343c140af13048fd2fef5aa21f7152044a84f7642d60163fb541d454bc
sha512 58665cf67cc7ccada3e2636d2b2bcf978bdd9e2d7b5c39935180b04a623b2d9892107add4fa0d33e4126280b8d60a9a43c6783dae013387c6f328041ab3c3dd1
ripemd-160 36ef98015b97bba740a356d5acef8d41241e6ef2

28888921 as geometric shapes

Circle

Radius = n
Diameter 57777842
Circumference 181514443.96747
Area 2.6218782160676E+15

Sphere

Radius = n
Volume 1.0099097687413E+23
Surface area 1.048751286427E+16
Circumference 181514443.96747

Square

Length = n
Perimeter 115555684
Area 834569756544241
Diagonal 40855103.880525

Cube

Length = n
Surface area 5007418539265446
Volume 2.4109819765796E+22
Space diagonal 50037078.947843

Equilateral Triangle

Length = n
Perimeter 86666763
Area 3.6137930519875E+14
Altitude 25018539.473922

Triangular Pyramid

Length = n
Surface area 3.6137930519875E+14
Volume 2.8413695082633E+21
Height 13618367.960175