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

81121539 (number)

81121539 is an odd 8-digits composite number following 81121538 and preceding 81121540. In scientific notation, it is written as 8.1121539 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 53937576 positive integers (up to 81121539) that are relatively prime to 81121539.

Interesting facts

81121539 has 8 divisors, whose sum is 108448960
The reverse of 81121539 is 93512118
Previous prime number is 379

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one million one hundred twenty-one thousand five hundred thirty-nine

Notation

Scientific notation	8.1121539 × 10^7
Engineering notation	8.1121539 × 10^6

Prime Factorization of 81121539

Prime Factorization 3 × 379 × 71347

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81121539	Product of the distinct prime numbers

The prime factorization of 81121539 is 3 × 379 × 71347. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 6, 63, 36, 794, 482, 5064, 8463, 95414, 25726, 307066, 859576, 3234428, 2152985, 3417709, 13064921, 241183341, 291113555, 1278122766, 5058049077

Basic calculations (n = 81121539)

Multiplication

n×y

n×2	162243078
n×3	243364617
n×4	324486156
n×5	405607695

Division

n÷y

n÷2	40560769.5
n÷3	27040513
n÷3	20280384.75
n÷5	16224307.8

Exponentiation

n^y

n²	6580704089728521
n³	5.3383684346237E+23
n⁴	4.330566631657E+31
n⁵	3.5130222990206E+39

Nth Root

^y√n

²√n	9006.7496356899
³√n	432.89116982138
⁴√n	94.903896841436
⁵√n	38.179236239897

Divisors of 81121539

1, 3, 379, 1137, 71347, 214041, 27040513, 81121539

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	-81121538	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 81121539 can be divided by 8 positive divisors. The sum of these divisors (counting 81121539) is 1, the average is 0.125.

Base conversion 81121539

Base	System	Value
2	Binary	100110101011101000100000011
3	Ternary	12122122101211110
4	Quaternary	10311131010003
5	Quinary	131231342124
6	Senary	12014414403
8	Octal	465350403
10	Decimal	81121539
12	Duodecimal	23201403
16	Hexadecimal	4d5d103
20	Vigesimal	15703gj
36	Base36	1caps3

Cryptographic Hash Functions

md5	8f421eee8b16edf8cacd14bee7636e45
sha1	ff5ee262f8e879612ee14bc180a53056297095de
sha256	32b5088b5cd4768068e6dc20d457c4b536550042ed09057675c32d0246806897
sha512	1f6f3e7565fe378ace0065feafbc2fd5061f1e44eea54e95d6fb86a6d3b79e350313c25745c480a12f1c7289d5039e4f6d7a8b06a61f94258c212ee280bb0ca7
ripemd-160	800ca2c7d6f2d4d063e939c409f6c528be0bebcd

81121539 as geometric shapes

Circle

Radius = n

Diameter	162243078
Circumference	509701661.9406
Area	2.0673891623739E+16

Sphere

Radius = n

Volume	2.2361305408493E+24
Surface area	8.2695566494958E+16
Circumference	509701661.9406

Square

Length = n

Perimeter	324486156
Area	6580704089728521
Diagonal	114723180.65438

Cube

Length = n

Surface area	39484224538371126
Volume	5.3383684346237E+23
Space diagonal	140506627.13618

Equilateral Triangle

Length = n

Perimeter	243364617
Area	2.8495284582465E+15
Altitude	70253313.56809

Triangular Pyramid

Length = n

Surface area	2.8495284582465E+15
Volume	6.2913275343244E+22
Height	38241060.218126