28897890 (number)

28897890 is an even 8-digits composite number following 28897889 and preceding 28897891. In scientific notation, it is written as 2.8897890 × 10^7. The sum of its digits is 51. It has a total of 6 prime factors and 64 positive divisors. There are 6082560 positive integers (up to 28897890) that are relatively prime to 28897890.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred ninety-seven thousand eight hundred ninety

Notation

Scientific notation 2.8897890 × 10^7
Engineering notation 2.8897890 × 10^6

Prime Factorization of 28897890

Prime Factorization 2 × 21 × 5 × 23 × 31 × 193

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 28897890
Product of the distinct prime numbers

The prime factorization of 28897890 is 2 × 21 × 5 × 23 × 31 × 193. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 9, 73, 87, 226, 997, 5652, 9920, 70769, 86258, 801452, 943596, 6707975, 9075432, 10894985, 59605069, 410334951, 162454490, 7946209316, 3335837571

Basic calculations (n = 28897890)

Multiplication

n×y
n×2 57795780
n×3 86693670
n×4 115591560
n×5 144489450

Division

n÷y
n÷2 14448945
n÷3 9632630
n÷3 7224472.5
n÷5 5779578

Exponentiation

ny
n2 835088046452100
n3 2.4132282506688E+22
n4 6.9737204532718E+29
n5 2.015258065494E+37

Nth Root

y√n
2√n 5375.6757714728
3√n 306.87066740468
4√n 73.31900007142
5√n 31.0579814851

Divisors of 28897890

1, 2, 5, 10, 21, 23, 31, 42, 46, 62, 105, 115, 155, 193, 210, 230, 310, 386, 483, 651, 713, 965, 966, 1302, 1426, 1930, 2415, 3255, 3565, 4053, 4439, 4830, 5983, 6510, 7130, 8106, 8878, 11966, 14973, 20265, 22195, 29915, 29946, 40530, 44390, 59830, 74865, 93219, 125643, 137609, 149730, 186438, 251286, 275218, 466095, 628215, 688045, 932190, 1256430, 1376090, 2889789, 5779578, 14448945, 28897890

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28897889
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28897890 can be divided by 64 positive divisors. The sum of these divisors (counting 28897890) is 1, the average is 0.015625.

Base conversion 28897890

Base System Value
2 Binary 1101110001111001001100010
3 Ternary 2000101011110020
4 Quaternary 1232033021202
5 Quinary 24344213030
6 Senary 2511214310
8 Octal 156171142
10 Decimal 28897890
12 Duodecimal 9817396
16 Hexadecimal 1b8f262
20 Vigesimal 90c4ea
36 Base36 h7dr6

Cryptographic Hash Functions

md5 7d15c124be3a0b823e7db4f7d9b77c70
sha1 ecc9396206425afa4a01e3d9f93f7bd66a524cc6
sha256 ac542621298e354188ea9f701fe2640b14dc69c2fefc4d88c58503a8b733d990
sha512 3dc5ef6cd6c6c1cdf6021ea8de6df19d87660fcbe92566234b05135c95a3213a0a0c6e33a9bda0946d44be996374e0cf06532be7e37ff60d268b5ca4b8ed0993
ripemd-160 cad70b130758dd54ba15a4172f316dc8aa3edbfa

28897890 as geometric shapes

Circle

Radius = n
Diameter 57795780
Circumference 181570797.85649
Area 2.6235064718346E+15

Sphere

Radius = n
Volume 1.0108506858315E+23
Surface area 1.0494025887338E+16
Circumference 181570797.85649

Square

Length = n
Perimeter 115591560
Area 835088046452100
Diagonal 40867787.961966

Cube

Length = n
Surface area 5010528278712600
Volume 2.4132282506688E+22
Space diagonal 50052613.711537

Equilateral Triangle

Length = n
Perimeter 86693670
Area 3.6160373131212E+14
Altitude 25026306.855768

Triangular Pyramid

Length = n
Surface area 3.6160373131212E+14
Volume 2.8440167676647E+21
Height 13622595.987322