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

81958081 (number)

81958081 is an odd 8-digits composite number following 81958080 and preceding 81958082. In scientific notation, it is written as 8.1958081 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 81206064 positive integers (up to 81958081) that are relatively prime to 81958081.

Interesting facts

81958081 has 4 divisors, whose sum is 82710100
The reverse of 81958081 is 18085918
Previous prime number is 109

Basic properties

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

Name

Name	eighty-one million nine hundred fifty-eight thousand eighty-one

Notation

Scientific notation	8.1958081 × 10^7
Engineering notation	8.1958081 × 10^6

Prime Factorization of 81958081

Prime Factorization 109 × 751909

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81958081	Product of the distinct prime numbers

The prime factorization of 81958081 is 109 × 751909. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 97, 19, 939, 374, 1308, 1432, 48482, 39737, 972736, 390546, 5834096, 448118, 40548990, 52427081, 361731769, 746509832, 453789393, 6695027978

Basic calculations (n = 81958081)

Multiplication

n×y

n×2	163916162
n×3	245874243
n×4	327832324
n×5	409790405

Division

n÷y

n÷2	40979040.5
n÷3	27319360.333333
n÷3	20489520.25
n÷5	16391616.2

Exponentiation

n^y

n²	6717127041202561
n³	5.5052284213017E+23
n⁴	4.5119795687655E+31
n⁵	3.6979318696723E+39

Nth Root

^y√n

²√n	9053.0702526822
³√n	434.37410493406
⁴√n	95.147623473644
⁵√n	38.257655859729

Divisors of 81958081

1, 109, 751909, 81958081

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	-81958080	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 81958081 can be divided by 4 positive divisors. The sum of these divisors (counting 81958081) is 1, the average is 0.25.

Base conversion 81958081

Base	System	Value
2	Binary	100111000101001010011000001
3	Ternary	12201012220100111
4	Quaternary	10320221103001
5	Quinary	131440124311
6	Senary	12044351321
8	Octal	470512301
10	Decimal	81958081
12	Duodecimal	23545541
16	Hexadecimal	4e294c1
20	Vigesimal	15c4f41
36	Base36	1csn9d

Cryptographic Hash Functions

md5	ab8668bd37d99b586ca6565372813403
sha1	1bec62c1481378c7292c756bbd470ec5af115dca
sha256	5c2350c2d929fb41948fe50d563d64d019a59aace1faddd11444abd257dab0c6
sha512	ca73c6a8400a6eb778f5290d288c364f2e705bd9b961cd27bab54e257798f307f9cdbdeebd20f8c33bb97a338c81e422eb39d46a961331f37b9ad977ea9a3c3d
ripemd-160	1a49416296500f0bbd444df9dc256457fbda4607

81958081 as geometric shapes

Circle

Radius = n

Diameter	163916162
Circumference	514957810.34383
Area	2.1102476965871E+16

Sphere

Radius = n

Volume	2.306024688626E+24
Surface area	8.4409907863485E+16
Circumference	514957810.34383

Square

Length = n

Perimeter	327832324
Area	6717127041202561
Diagonal	115906229.69627

Cube

Length = n

Surface area	40302762247215366
Volume	5.5052284213017E+23
Space diagonal	141955560.38285

Equilateral Triangle

Length = n

Perimeter	245874243
Area	2.9086013290644E+15
Altitude	70977780.191423

Triangular Pyramid

Length = n

Surface area	2.9086013290644E+15
Volume	6.4879739144722E+22
Height	38635409.898758