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

81489770 (number)

81489770 is an even 8-digits composite number following 81489769 and preceding 81489771. In scientific notation, it is written as 8.1489770 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 32595904 positive integers (up to 81489770) that are relatively prime to 81489770.

Interesting facts

81489770 has 8 divisors, whose sum is 146681604
The reverse of 81489770 is 07798418
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	eighty-one million four hundred eighty-nine thousand seven hundred seventy

Notation

Scientific notation	8.1489770 × 10^7
Engineering notation	8.1489770 × 10^6

Prime Factorization of 81489770

Prime Factorization 2 × 5 × 8148977

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489770	Product of the distinct prime numbers

The prime factorization of 81489770 is 2 × 5 × 8148977. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 71, 25, 951, 256, 5021, 1405, 46035, 52733, 466743, 325479, 3260812, 4981589, 1683206, 56051314, 231556373, 456160282, 1429628639, 7981440397

Basic calculations (n = 81489770)

Multiplication

n×y

n×2	162979540
n×3	244469310
n×4	325959080
n×5	407448850

Division

n÷y

n÷2	40744885
n÷3	27163256.666667
n÷3	20372442.5
n÷5	16297954

Exponentiation

n^y

n²	6640582614652900
n³	5.4113954993406E+23
n⁴	4.409733746203E+31
n⁵	3.5934818873932E+39

Nth Root

^y√n

²√n	9027.1684375556
³√n	433.54518175305
⁴√n	95.011412143782
⁵√n	38.213834501438

Divisors of 81489770

1, 2, 5, 10, 8148977, 16297954, 40744885, 81489770

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	-81489769	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 81489770 can be divided by 8 positive divisors. The sum of these divisors (counting 81489770) is 1, the average is 0.125.

Base conversion 81489770

Base	System	Value
2	Binary	100110110110110111101101010
3	Ternary	12200100002221122
4	Quaternary	10312312331222
5	Quinary	131330133040
6	Senary	12030335242
8	Octal	466667552
10	Decimal	81489770
12	Duodecimal	2335a522
16	Hexadecimal	4db6f6a
20	Vigesimal	159648a
36	Base36	1cilwq

Cryptographic Hash Functions

md5	5b41aa0fb17f9fc580133d93963e8f8e
sha1	bb1fbca0773d31893ff68f02c1b2a927be45920c
sha256	d8b8b90d631999837f9406fa560de499ae6a1af06fe78d5cfce73592a97d2e8d
sha512	3e3814585262fd38c9137fab142ada6b018b9f3c304954abc9dea22efbf78761101d63a408065e40ee94ea934c35687962d445ddaf62cd78ca199ee9b6c0fd3f
ripemd-160	aaee8b425928048a7625452f8ba524e929fa7cd7

81489770 as geometric shapes

Circle

Radius = n

Diameter	162979540
Circumference	512015325.54944
Area	2.086200555775E+16

Sphere

Radius = n

Volume	2.2667200461863E+24
Surface area	8.3448022230999E+16
Circumference	512015325.54944

Square

Length = n

Perimeter	325959080
Area	6640582614652900
Diagonal	115243937.92866

Cube

Length = n

Surface area	39843495687917400
Volume	5.4113954993406E+23
Space diagonal	141144421.9371

Equilateral Triangle

Length = n

Perimeter	244469310
Area	2.8754566201094E+15
Altitude	70572210.968551

Triangular Pyramid

Length = n

Surface area	2.8754566201094E+15
Volume	6.3773907554435E+22
Height	38414645.976221