Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81489208 (number)

81489208 is an even 8-digits composite number following 81489207 and preceding 81489209. In scientific notation, it is written as 8.1489208 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 8 positive divisors. There are 40744600 positive integers (up to 81489208) that are relatively prime to 81489208.

Interesting facts

81489208 has 8 divisors, whose sum is 152792280
The reverse of 81489208 is 80298418
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4

Name

Name	eighty-one million four hundred eighty-nine thousand two hundred eight

Notation

Scientific notation	8.1489208 × 10^7
Engineering notation	8.1489208 × 10^6

Prime Factorization of 81489208

Prime Factorization 2 × 2 × 2 × 10186151

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	20372302	Product of the distinct prime numbers

The prime factorization of 81489208 is 2 × 2 × 2 × 10186151. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 6, 62, 69, 676, 239, 3713, 1187, 76809, 40248, 516796, 265234, 8270808, 922810, 7237893, 44983882, 840697859, 162608934, 7197507976, 388197767

Basic calculations (n = 81489208)

Multiplication

n×y

n×2	162978416
n×3	244467624
n×4	325956832
n×5	407446040

Division

n÷y

n÷2	40744604
n÷3	27163069.333333
n÷3	20372302
n÷5	16297841.6

Exponentiation

n^y

n²	6640491020467264
n³	5.4112835398899E+23
n⁴	4.4096120992906E+31
n⁵	3.5933579755841E+39

Nth Root

^y√n

²√n	9027.137309247
³√n	433.54418509236
⁴√n	95.011248330116
⁵√n	38.213781792407

Divisors of 81489208

1, 2, 4, 8, 10186151, 20372302, 40744604, 81489208

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81489207	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489208 can be divided by 8 positive divisors. The sum of these divisors (counting 81489208) is 1, the average is 0.125.

Base conversion 81489208

Base	System	Value
2	Binary	100110110110110110100111000
3	Ternary	12200100002011211
4	Quaternary	10312312310320
5	Quinary	131330123313
6	Senary	12030332504
8	Octal	466666470
10	Decimal	81489208
12	Duodecimal	2335a134
16	Hexadecimal	4db6d38
20	Vigesimal	1596308
36	Base36	1cilh4

Cryptographic Hash Functions

md5	5314d4e24e0ff4ca2ed732120c19e5fd
sha1	462c1277446b67c19857731385391b37b53b9ce3
sha256	0caf50516796287946bb9f3f68b8a425be87810eba7c0febcc5be9fca7405cb7
sha512	0b45de69ecf92e6a8b00b5bcd37ad2c7b4175469bdf2536d59db76d71f7ba5bd72154329f7be7fc8d58825e9b35e2983269470ed0ed5194094500db0cd5a93e3
ripemd-160	bade4f8b0dbe64283b8248f60e94e23eedd7cd11

81489208 as geometric shapes

Circle

Radius = n

Diameter	162978416
Circumference	512011794.3993
Area	2.0861717806129E+16

Sphere

Radius = n

Volume	2.2666731487213E+24
Surface area	8.3446871224516E+16
Circumference	512011794.3993

Square

Length = n

Perimeter	325956832
Area	6640491020467264
Diagonal	115243143.14064

Cube

Length = n

Surface area	39842946122803584
Volume	5.4112835398899E+23
Space diagonal	141143448.52455

Equilateral Triangle

Length = n

Perimeter	244467624
Area	2.8754169586636E+15
Altitude	70571724.262274

Triangular Pyramid

Length = n

Surface area	2.8754169586636E+15
Volume	6.3772588099655E+22
Height	38414381.046881