28666988 (number)

28666988 is an even 8-digits composite number following 28666987 and preceding 28666989. In scientific notation, it is written as 2.8666988 × 10^7. The sum of its digits is 53. It has a total of 4 prime factors and 12 positive divisors. There are 12285840 positive integers (up to 28666988) that are relatively prime to 28666988.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred sixty-six thousand nine hundred eighty-eight

Notation

Scientific notation 2.8666988 × 10^7
Engineering notation 2.8666988 × 10^6

Prime Factorization of 28666988

Prime Factorization 2 × 2 × 7 × 1023821

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 14333494
Product of the distinct prime numbers

The prime factorization of 28666988 is 2 × 2 × 7 × 1023821. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 6, 86, 65, 359, 185, 8248, 5171, 52470, 8587, 900159, 236961, 4197312, 2799417, 32012841, 3292201, 550091022, 111201600, 8146036754, 6162181997

Basic calculations (n = 28666988)

Multiplication

n×y
n×2 57333976
n×3 86000964
n×4 114667952
n×5 143334940

Division

n÷y
n÷2 14333494
n÷3 9555662.6666667
n÷3 7166747
n÷5 5733397.6

Exponentiation

ny
n2 821796200992144
n3 2.3558421832287E+22
n4 6.7534899596512E+29
n5 1.9360221563144E+37

Nth Root

y√n
2√n 5354.1561426615
3√n 306.05115410631
4√n 73.172099482395
5√n 31.008189746268

Divisors of 28666988

1, 2, 4, 7, 14, 28, 1023821, 2047642, 4095284, 7166747, 14333494, 28666988

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28666987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28666988 can be divided by 12 positive divisors. The sum of these divisors (counting 28666988) is 1, the average is 0.083333333333333.

Base conversion 28666988

Base System Value
2 Binary 1101101010110110001101100
3 Ternary 1222221102201022
4 Quaternary 1231112301230
5 Quinary 24314320423
6 Senary 2502233312
8 Octal 155266154
10 Decimal 28666988
12 Duodecimal 9725838
16 Hexadecimal 1b56c6c
20 Vigesimal 8j3798
36 Base36 h2fl8

Cryptographic Hash Functions

md5 93bf64a24daa317de26a0964fd38cbc2
sha1 957b4e6d663664c2092a53bc4d36dcf2dc5d58e0
sha256 3898872a84c6001902945aff05846dbad58709a123748bf32898cb6c8430f603
sha512 b40c069ac70d7e2c5e68504995c328eec325eb894c3626ec33ba1eb7d667ddef0b869481f3d7db2d72459118b47fa825278f0b8a9e6f9ee0bec9120d6ecb42f0
ripemd-160 9accc87bf5fe4a3eb3a14a3f2a375851dab119d2

28666988 as geometric shapes

Circle

Radius = n
Diameter 57333976
Circumference 180119997.80269
Area 2.5817489077849E+15

Sphere

Radius = n
Volume 9.8681286611311E+22
Surface area 1.032699563114E+16
Circumference 180119997.80269

Square

Length = n
Perimeter 114667952
Area 821796200992144
Diagonal 40541243.221987

Cube

Length = n
Surface area 4930777205952864
Volume 2.3558421832287E+22
Space diagonal 49652679.715967

Equilateral Triangle

Length = n
Perimeter 86000964
Area 3.5584819339637E+14
Altitude 24826339.857984

Triangular Pyramid

Length = n
Surface area 3.5584819339637E+14
Volume 2.7763866386106E+21
Height 13513747.740662