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

81550138 (number)

81550138 is an even 8-digits composite number following 81550137 and preceding 81550139. In scientific notation, it is written as 8.1550138 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 40775068 positive integers (up to 81550138) that are relatively prime to 81550138.

Interesting facts

81550138 has 4 divisors, whose sum is 122325210
The reverse of 81550138 is 83105518
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	eighty-one million five hundred fifty thousand one hundred thirty-eight

Notation

Scientific notation	8.1550138 × 10^7
Engineering notation	8.1550138 × 10^6

Prime Factorization of 81550138

Prime Factorization 2 × 40775069

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81550138	Product of the distinct prime numbers

The prime factorization of 81550138 is 2 × 40775069. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 5, 60, 6, 983, 17, 4166, 1335, 26940, 82776, 807296, 794240, 2137488, 1045341, 55387550, 25600940, 948732971, 540951839, 1372643269, 3671272783

Basic calculations (n = 81550138)

Multiplication

n×y

n×2	163100276
n×3	244650414
n×4	326200552
n×5	407750690

Division

n÷y

n÷2	40775069
n÷3	27183379.333333
n÷3	20387534.5
n÷5	16310027.6

Exponentiation

n^y

n²	6650425007819044
n³	5.4234307714629E+23
n⁴	4.4228152784625E+31
n⁵	3.6068119630712E+39

Nth Root

^y√n

²√n	9030.511502678
³√n	433.65221275563
⁴√n	95.029003481453
⁵√n	38.219494621677

Divisors of 81550138

1, 2, 40775069, 81550138

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	-81550137	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 81550138 can be divided by 4 positive divisors. The sum of these divisors (counting 81550138) is 1, the average is 0.25.

Base conversion 81550138

Base	System	Value
2	Binary	100110111000101101100111010
3	Ternary	12200110011202111
4	Quaternary	10313011230322
5	Quinary	131334101023
6	Senary	12031522534
8	Octal	467055472
10	Decimal	81550138
12	Duodecimal	2338944a
16	Hexadecimal	4dc5b3a
20	Vigesimal	159df6i
36	Base36	1cjwhm

Cryptographic Hash Functions

md5	2c5b57100172872e7b0e86524ebfd328
sha1	73b7ab29f8c30b2545ddbfc1f76a7e62a5c30876
sha256	b601c6760711c1cfc9210f864c9e7e3af4c35b1257af2d0aa015012aa0c247a1
sha512	3a4a1919e40dcb7b1ded6a845494f03768162e2ab6e2fd8b16e2a751f84228554f97a411e068b36e105f239a28b33834b9603eb0d54af1953e9add92f55fcc36
ripemd-160	58c0b2e40a3370a421bbd216e7fe90b843217db1

81550138 as geometric shapes

Circle

Radius = n

Diameter	163100276
Circumference	512394628.88007
Area	2.0892926347814E+16

Sphere

Radius = n

Volume	2.2717613691841E+24
Surface area	8.3571705391257E+16
Circumference	512394628.88007

Square

Length = n

Perimeter	326200552
Area	6650425007819044
Diagonal	115329311.173

Cube

Length = n

Surface area	39902550046914264
Volume	5.4234307714629E+23
Space diagonal	141248982.38025

Equilateral Triangle

Length = n

Perimeter	244650414
Area	2.8797185013673E+15
Altitude	70624491.190127

Triangular Pyramid

Length = n

Surface area	2.8797185013673E+15
Volume	6.3915744596621E+22
Height	38443103.724333