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

81550145 (number)

81550145 is an odd 8-digits composite number following 81550144 and preceding 81550146. In scientific notation, it is written as 8.1550145 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 63715680 positive integers (up to 81550145) that are relatively prime to 81550145.

Interesting facts

81550145 has 12 divisors, whose sum is 100200276
The reverse of 81550145 is 54105518
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	eighty-one million five hundred fifty thousand one hundred forty-five

Notation

Scientific notation	8.1550145 × 10^7
Engineering notation	8.1550145 × 10^6

Prime Factorization of 81550145

Prime Factorization 5 × 43 × 43 × 8821

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	1896515	Product of the distinct prime numbers

The prime factorization of 81550145 is 5 × 43 × 43 × 8821. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 3, 99, 93, 15, 2978, 5218, 76573, 94686, 332232, 787756, 8243099, 4230446, 90526955, 50441543, 596153321, 318062176, 9841533240, 2151329504

Basic calculations (n = 81550145)

Multiplication

n×y

n×2	163100290
n×3	244650435
n×4	326200580
n×5	407750725

Division

n÷y

n÷2	40775072.5
n÷3	27183381.666667
n÷3	20387536.25
n÷5	16310029

Exponentiation

n^y

n²	6650426149521025
n³	5.4234321680523E+23
n⁴	4.4228167970233E+31
n⁵	3.6068135110569E+39

Nth Root

^y√n

²√n	9030.511890253
³√n	433.6522251634
⁴√n	95.029005520699
⁵√n	38.219495277805

Divisors of 81550145

1, 5, 43, 215, 1849, 8821, 9245, 44105, 379303, 1896515, 16310029, 81550145

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81550144	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81550145 can be divided by 12 positive divisors. The sum of these divisors (counting 81550145) is 1, the average is 0.083333333333333.

Base conversion 81550145

Base	System	Value
2	Binary	100110111000101101101000001
3	Ternary	12200110011202202
4	Quaternary	10313011231001
5	Quinary	131334101040
6	Senary	12031522545
8	Octal	467055501
10	Decimal	81550145
12	Duodecimal	23389455
16	Hexadecimal	4dc5b41
20	Vigesimal	159df75
36	Base36	1cjwht

Cryptographic Hash Functions

md5	21bd81929ac32fdab0b149c4313a98c0
sha1	6c63a391166e36537afd365893d0909e5d619490
sha256	8febdecf8c3672f254f88c38b367e68192eabd74cefec2860c86ae259a0822d7
sha512	33d5666a85e5c4afb35ad0252d8e6e45ed330ea992a4de19e1610048a3a4736acb950c6fe676d730deda978c953db65b27afc226a0e318f4f4d4ef269ff6ba98
ripemd-160	722db543c4bfe21dce0e15c4eee8d10bc4d16c19

81550145 as geometric shapes

Circle

Radius = n

Diameter	163100290
Circumference	512394672.86236
Area	2.0892929934577E+16

Sphere

Radius = n

Volume	2.2717619541861E+24
Surface area	8.3571719738307E+16
Circumference	512394672.86236

Square

Length = n

Perimeter	326200580
Area	6650426149521025
Diagonal	115329321.07249

Cube

Length = n

Surface area	39902556897126150
Volume	5.4234321680523E+23
Space diagonal	141248994.50461

Equilateral Triangle

Length = n

Perimeter	244650435
Area	2.8797189957388E+15
Altitude	70624497.252305

Triangular Pyramid

Length = n

Surface area	2.8797189957388E+15
Volume	6.3915761055584E+22
Height	38443107.024164