28789021 (number)

28789021 is an odd 8-digits composite number following 28789020 and preceding 28789022. In scientific notation, it is written as 2.8789021 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 28749532 positive integers (up to 28789021) that are relatively prime to 28789021.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8789021 × 10^7
Engineering notation 2.8789021 × 10^6

Prime Factorization of 28789021

Prime Factorization 743 × 38747

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28789021
Product of the distinct prime numbers

The prime factorization of 28789021 is 743 × 38747. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28789021)

Multiplication

n×y
n×2 57578042
n×3 86367063
n×4 115156084
n×5 143945105

Division

n÷y
n÷2 14394510.5
n÷3 9596340.3333333
n÷3 7197255.25
n÷5 5757804.2

Exponentiation

ny
n2 828807730138441
n3 2.3860563147918E+22
n4 6.8692225353723E+29
n5 1.9775819182451E+37

Nth Root

y√n
2√n 5365.5401405637
3√n 306.48481749178
4√n 73.249847375702
5√n 31.034544768423

Divisors of 28789021

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 -28789020
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 28789021 can be divided by 4 positive divisors. The sum of these divisors (counting 28789021) is 1, the average is 0.25.

Base conversion 28789021

Base System Value
2 Binary 1101101110100100100011101
3 Ternary 2000011122010001
4 Quaternary 1231310210131
5 Quinary 24332222041
6 Senary 2505014301
8 Octal 155644435
10 Decimal 28789021
12 Duodecimal 9784391
16 Hexadecimal 1b7491d
20 Vigesimal 8jicb1
36 Base36 h51r1

Cryptographic Hash Functions

md5 809b395c65331e14582ed4a120e191ee
sha1 dffc505db190e207deb1e78b77c84ff4ca70c346
sha256 b1bd09cfd5b2606732dffce5004fe7d09a7adb9a369415c8471461e290875cb8
sha512 da8f58c6c72accb6c3186e981380e0a418f2f173c5f21c3de970efae6d95d7e71a1feae01b436ff1308717c044e34499eaeabefa00c7cf99a550acdb2fdced74
ripemd-160 da396d54edaae724e9c8c3345e3168db563c6d11

28789021 as geometric shapes

Circle

Radius = n
Diameter 57578042
Circumference 180886753.75528
Area 2.6037762762414E+15

Sphere

Radius = n
Volume 9.9946893194686E+22
Surface area 1.0415105104965E+16
Circumference 180886753.75528

Square

Length = n
Perimeter 115156084
Area 828807730138441
Diagonal 40713823.945644

Cube

Length = n
Surface area 4972846380830646
Volume 2.3860563147918E+22
Space diagonal 49864047.072167

Equilateral Triangle

Length = n
Perimeter 86367063
Area 3.588842745764E+14
Altitude 24932023.536084

Triangular Pyramid

Length = n
Surface area 3.588842745764E+14
Volume 2.8119943341371E+21
Height 13571274.648548