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

81498981 (number)

81498981 is an odd 8-digits composite number following 81498980 and preceding 81498982. In scientific notation, it is written as 8.1498981 × 10^7. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 54332652 positive integers (up to 81498981) that are relatively prime to 81498981.

Interesting facts

81498981 has 4 divisors, whose sum is 108665312
The reverse of 81498981 is 18989418
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3

Name

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

Notation

Scientific notation	8.1498981 × 10^7
Engineering notation	8.1498981 × 10^6

Prime Factorization of 81498981

Prime Factorization 3 × 27166327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81498981	Product of the distinct prime numbers

The prime factorization of 81498981 is 3 × 27166327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 58, 62, 829, 865, 6700, 3387, 58657, 43525, 551425, 813489, 9534343, 9375051, 89908242, 13583941, 596925496, 349679346, 7100283717, 2336990055

Basic calculations (n = 81498981)

Multiplication

n×y

n×2	162997962
n×3	244496943
n×4	325995924
n×5	407494905

Division

n÷y

n÷2	40749490.5
n÷3	27166327
n÷3	20374745.25
n÷5	16299796.2

Exponentiation

n^y

n²	6642083904038361
n³	5.4132306989563E+23
n⁴	4.4117278588285E+31
n⁵	3.5955132494384E+39

Nth Root

^y√n

²√n	9027.6786052672
³√n	433.56151604965
⁴√n	95.014096876554
⁵√n	38.214698344142

Divisors of 81498981

1, 3, 27166327, 81498981

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	-81498980	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 81498981 can be divided by 4 positive divisors. The sum of these divisors (counting 81498981) is 1, the average is 0.25.

Base conversion 81498981

Base	System	Value
2	Binary	100110110111001001101100101
3	Ternary	12200100120120210
4	Quaternary	10312321031211
5	Quinary	131330431411
6	Senary	12030450033
8	Octal	466711545
10	Decimal	81498981
12	Duodecimal	23363919
16	Hexadecimal	4db9365
20	Vigesimal	1597791
36	Base36	1cit0l

Cryptographic Hash Functions

md5	5e252d64c5ae2ab4c786419af60fb0ca
sha1	3287e7109317d23ce3f1188d10746cdd4eb9ae6d
sha256	ab2caf9d3f2cb95825b6024bff03e694f5094cae8a9838e8a611cf6ff9616150
sha512	e8210e92606b722679607fedf8efd11e21cb416991988d71fd3ddbb8dcc05e4acd33484553935e85cfd49d33b1d2a857d6ea6d9a1540054ebad86fdac5b6cc02
ripemd-160	306d1597c140e1a1ddc81047a0fe513b64b47bcc

81498981 as geometric shapes

Circle

Radius = n

Diameter	162997962
Circumference	512073199.96931
Area	2.0866721997454E+16

Sphere

Radius = n

Volume	2.2674887728037E+24
Surface area	8.3466887989816E+16
Circumference	512073199.96931

Square

Length = n

Perimeter	325995924
Area	6642083904038361
Diagonal	115256964.24979

Cube

Length = n

Surface area	39852503424230166
Volume	5.4132306989563E+23
Space diagonal	141160375.85709

Equilateral Triangle

Length = n

Perimeter	244496943
Area	2.8761066974825E+15
Altitude	70580187.928545

Triangular Pyramid

Length = n

Surface area	2.8761066974825E+15
Volume	6.379553558932E+22
Height	38418988.083262