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

81489997 (number)

81489997 is an odd 8-digits composite number following 81489996 and preceding 81489998. In scientific notation, it is written as 8.1489997 × 10^7. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 81389920 positive integers (up to 81489997) that are relatively prime to 81489997.

Interesting facts

81489997 has 4 divisors, whose sum is 81590076
The reverse of 81489997 is 79998418
Previous prime number is 821

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1

Name

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

Notation

Scientific notation	8.1489997 × 10^7
Engineering notation	8.1489997 × 10^6

Prime Factorization of 81489997

Prime Factorization 821 × 99257

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81489997	Product of the distinct prime numbers

The prime factorization of 81489997 is 821 × 99257. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 6, 12, 987, 227, 1681, 9173, 83999, 66501, 189692, 337336, 1436867, 3326854, 39811083, 35375400, 290210863, 924126526, 4804375450, 9100353121

Basic calculations (n = 81489997)

Multiplication

n×y

n×2	162979994
n×3	244469991
n×4	325959988
n×5	407449985

Division

n÷y

n÷2	40744998.5
n÷3	27163332.333333
n÷3	20372499.25
n÷5	16297999.4

Exponentiation

n^y

n²	6640619611060009
n³	5.4114407218342E+23
n⁴	4.4097828818795E+31
n⁵	3.5935319381501E+39

Nth Root

^y√n

²√n	9027.1810107032
³√n	433.54558431755
⁴√n	95.011478310271
⁵√n	38.213855791303

Divisors of 81489997

1, 821, 99257, 81489997

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81489996	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489997 can be divided by 4 positive divisors. The sum of these divisors (counting 81489997) is 1, the average is 0.25.

Base conversion 81489997

Base	System	Value
2	Binary	100110110110111000001001101
3	Ternary	12200100010021001
4	Quaternary	10312313001031
5	Quinary	131330134442
6	Senary	12030340301
8	Octal	466670115
10	Decimal	81489997
12	Duodecimal	2335a691
16	Hexadecimal	4db704d
20	Vigesimal	15964jh
36	Base36	1cim31

Cryptographic Hash Functions

md5	8a26954a240bdf7b306bafd689c084d5
sha1	4f3b5a1832d2457c2a38460ed74aea83a18e1696
sha256	e13964175915c5dbe254bcc66e628b62607205d81e7750b138acac8b8241fcb1
sha512	45de9aea738590ff457956306ece44459be4aa9d25cf2953fde0cc4eba7453d17009e2fa6fdf612235c529ba5161f8414a3e6dca5aff0200dab118a86ab2014f
ripemd-160	a177fc53b511bfd497aca23c794a0e72503574a1

81489997 as geometric shapes

Circle

Radius = n

Diameter	162979994
Circumference	512016751.83251
Area	2.086212178539E+16

Sphere

Radius = n

Volume	2.2667389889401E+24
Surface area	8.3448487141562E+16
Circumference	512016751.83251

Square

Length = n

Perimeter	325959988
Area	6640619611060009
Diagonal	115244258.95514

Cube

Length = n

Surface area	39843717666360054
Volume	5.4114407218342E+23
Space diagonal	141144815.11264

Equilateral Triangle

Length = n

Perimeter	244469991
Area	2.8754726400236E+15
Altitude	70572407.556318

Triangular Pyramid

Length = n

Surface area	2.8754726400236E+15
Volume	6.3774440506633E+22
Height	38414752.985048