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

81298081 (number)

81298081 is an odd 8-digits prime number following 81298080 and preceding 81298082. In scientific notation, it is written as 8.1298081 × 10^7. The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors. There are 81298080 positive integers (up to 81298081) that are relatively prime to 81298081.

Interesting facts

81298081 has 2 divisors, whose sum is 81298082
The reverse of 81298081 is 18089218
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	eighty-one million two hundred ninety-eight thousand eighty-one

Notation

Scientific notation	8.1298081 × 10^7
Engineering notation	8.1298081 × 10^6

Prime Factorization of 81298081

Prime Factorization 81298081

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81298081	Product of the distinct prime numbers

The prime factorization of 81298081 is 81298081. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 6, 52, 44, 578, 49, 1245, 4414, 73855, 33847, 600302, 491309, 1036046, 5785574, 58741217, 22801238, 797379864, 612489330, 8294264639, 2333941782

Basic calculations (n = 81298081)

Multiplication

n×y

n×2	162596162
n×3	243894243
n×4	325192324
n×5	406490405

Division

n÷y

n÷2	40649040.5
n÷3	27099360.333333
n÷3	20324520.25
n÷5	16259616.2

Exponentiation

n^y

n²	6609377974282561
n³	5.3732974591284E+23
n⁴	4.3683877206931E+31
n⁵	3.5514153875632E+39

Nth Root

^y√n

²√n	9016.5448482221
³√n	433.20497098739
⁴√n	94.955488773541
⁵√n	38.195839423312

Divisors of 81298081

1, 81298081

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81298082	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40649041	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9016.5449036757	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999753992	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81298081 can be divided by 2 positive divisors. The sum of these divisors (counting 81298081) is 81298082, the average is 40649041.

Base conversion 81298081

Base	System	Value
2	Binary	100110110001000001010100001
3	Ternary	12122222101000001
4	Quaternary	10312020022201
5	Quinary	131303014311
6	Senary	12022300001
8	Octal	466101241
10	Decimal	81298081
12	Duodecimal	23287601
16	Hexadecimal	4d882a1
20	Vigesimal	1582541
36	Base36	1cei01

Cryptographic Hash Functions

md5	071fc293fd853be2e3f09ba1873ce0b5
sha1	9bd0b87159b8ea627b81078e1e9f9bc4745350be
sha256	eedb4859d35297b833ff1a45e8ce50a809eebe6af3b107b1ded3579e6719fdd1
sha512	88d6f593d1cdb5adcd57ee17c4029797847b08babb36be79013d26720211a7f7f042bc881360d71f30c3d5dffb24392a476fafb7129a7460f8736d395a237921
ripemd-160	7731a33cd8e195c38d799ab3aa97da821f532fd4

81298081 as geometric shapes

Circle

Radius = n

Diameter	162596162
Circumference	510810908.0411
Area	2.0763973288804E+16

Sphere

Radius = n

Volume	2.2507615764201E+24
Surface area	8.3055893155217E+16
Circumference	510810908.0411

Square

Length = n

Perimeter	325192324
Area	6609377974282561
Diagonal	114972848.74511

Cube

Length = n

Surface area	39656267845695366
Volume	5.3732974591284E+23
Space diagonal	140812406.84985

Equilateral Triangle

Length = n

Perimeter	243894243
Area	2.861944614471E+15
Altitude	70406203.424925

Triangular Pyramid

Length = n

Surface area	2.861944614471E+15
Volume	6.3324917844702E+22
Height	38324282.915035