28921880 (number)

28921880 is an even 8-digits composite number following 28921879 and preceding 28921881. In scientific notation, it is written as 2.8921880 × 10^7. The sum of its digits is 38. It has a total of 6 prime factors and 32 positive divisors. There are 10678656 positive integers (up to 28921880) that are relatively prime to 28921880.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8921880 × 10^7
Engineering notation 2.8921880 × 10^6

Prime Factorization of 28921880

Prime Factorization 2 × 2 × 2 × 5 × 13 × 55619

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7230470
Product of the distinct prime numbers

The prime factorization of 28921880 is 2 × 2 × 2 × 5 × 13 × 55619. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 3, 55, 24, 838, 814, 8388, 3134, 48419, 63655, 39890, 352508, 3055029, 8487856, 50365064, 62438146, 743150432, 717506224, 6758561508, 9885051837

Basic calculations (n = 28921880)

Multiplication

n×y
n×2 57843760
n×3 86765640
n×4 115687520
n×5 144609400

Division

n÷y
n÷2 14460940
n÷3 9640626.6666667
n÷3 7230470
n÷5 5784376

Exponentiation

ny
n2 836475142734400
n3 2.4192433701147E+22
n4 6.9969066441253E+29
n5 2.023636943326E+37

Nth Root

y√n
2√n 5377.9066559397
3√n 306.95556161984
4√n 73.334212042809
5√n 31.063136419824

Divisors of 28921880

1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55619, 111238, 222476, 278095, 444952, 556190, 723047, 1112380, 1446094, 2224760, 2892188, 3615235, 5784376, 7230470, 14460940, 28921880

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28921879
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28921880 can be divided by 32 positive divisors. The sum of these divisors (counting 28921880) is 1, the average is 0.03125.

Base conversion 28921880

Base System Value
2 Binary 1101110010101000000011000
3 Ternary 2000102101100202
4 Quaternary 1232111000120
5 Quinary 24401000010
6 Senary 2511521332
8 Octal 156250030
10 Decimal 28921880
12 Duodecimal 9829248
16 Hexadecimal 1b95018
20 Vigesimal 90f4e0
36 Base36 h7w9k

Cryptographic Hash Functions

md5 e0088dfafe4215c4e07720178aff2737
sha1 0993530d5eff72bea67eff633578f95cb95aa9ca
sha256 b1e89d0b0c09ee27fc23375b7ffb3889d7f205655fa2b234abbc556a22f067aa
sha512 685fb572e874c73d4afface153438fb805ea55d2f4b8ecae41819bbe69f8e7e40604254f4cb5dbd9d9c0a15d9e6da9d7c5292538bfdc2b9f99f8653cd1e22cd3
ripemd-160 9b50942d44dba0ca401923acca6a599bd2dc44b1

28921880 as geometric shapes

Circle

Radius = n
Diameter 57843760
Circumference 181721531.47201
Area 2.6278641633249E+15

Sphere

Radius = n
Volume 1.0133702931731E+23
Surface area 1.0511456653299E+16
Circumference 181721531.47201

Square

Length = n
Perimeter 115687520
Area 836475142734400
Diagonal 40901714.945327

Cube

Length = n
Surface area 5018850856406400
Volume 2.4192433701147E+22
Space diagonal 50094165.61041

Equilateral Triangle

Length = n
Perimeter 86765640
Area 3.622043616211E+14
Altitude 25047082.805205

Triangular Pyramid

Length = n
Surface area 3.622043616211E+14
Volume 2.8511056539145E+21
Height 13633904.981776