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

81283221 (number)

81283221 is an odd 8-digits composite number following 81283220 and preceding 81283222. In scientific notation, it is written as 8.1283221 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54188808 positive integers (up to 81283221) that are relatively prime to 81283221.

Interesting facts

81283221 has 4 divisors, whose sum is 90314700
The reverse of 81283221 is 12238218
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one million two hundred eighty-three thousand two hundred twenty-one

Notation

Scientific notation	8.1283221 × 10^7
Engineering notation	8.1283221 × 10^6

Prime Factorization of 81283221

Prime Factorization 9 × 9031469

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81283221	Product of the distinct prime numbers

The prime factorization of 81283221 is 9 × 9031469. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 6, 43, 66, 413, 216, 9214, 3146, 2789, 44322, 203597, 418898, 2139905, 6069941, 5165607, 53381110, 596359126, 387953529, 9185824725, 1713493355

Basic calculations (n = 81283221)

Multiplication

n×y

n×2	162566442
n×3	243849663
n×4	325132884
n×5	406416105

Division

n÷y

n÷2	40641610.5
n÷3	27094407
n÷3	20320805.25
n÷5	16256644.2

Exponentiation

n^y

n²	6606962016134841
n³	5.3703515369609E+23
n⁴	4.3651947082649E+31
n⁵	3.5481708617992E+39

Nth Root

^y√n

²√n	9015.7207698553
³√n	433.17857504606
⁴√n	94.951149386699
⁵√n	38.194443002462

Divisors of 81283221

1, 9, 9031469, 81283221

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	-81283220	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 81283221 can be divided by 4 positive divisors. The sum of these divisors (counting 81283221) is 1, the average is 0.25.

Base conversion 81283221

Base	System	Value
2	Binary	100110110000100100010010101
3	Ternary	12122221121121200
4	Quaternary	10312010202111
5	Quinary	131302030341
6	Senary	12022103113
8	Octal	466044225
10	Decimal	81283221
12	Duodecimal	2327aa99
16	Hexadecimal	4d84895
20	Vigesimal	1580811
36	Base36	1ce6j9

Cryptographic Hash Functions

md5	825177607a7acf78d715aab25f8d6e24
sha1	b86411f169ff7c7a84ccd8c883a8e3d07457070a
sha256	b6395bbd73e6f75ddfcbc22f93589b6b50cf0d3337db7f82e7ab0900137f9f2c
sha512	234816a129b3d78cd05a65cadcac201e45d170b91cc87de5fa7fbff2e435c7aa2f046aab4c01a6a3b0127cc0b74b25621bd4b9f2e80b5c582293fdff2c73fc14
ripemd-160	05dee364ca5117a8f905213cf59a7305daf6cfd1

81283221 as geometric shapes

Circle

Radius = n

Diameter	162566442
Circumference	510717539.90743
Area	2.0756383332436E+16

Sphere

Radius = n

Volume	2.2495275914282E+24
Surface area	8.3025533329744E+16
Circumference	510717539.90743

Square

Length = n

Perimeter	325132884
Area	6606962016134841
Diagonal	114951833.53157

Cube

Length = n

Surface area	39641772096809046
Volume	5.3703515369609E+23
Space diagonal	140786668.57485

Equilateral Triangle

Length = n

Perimeter	243849663
Area	2.8608984739058E+15
Altitude	70393334.287425

Triangular Pyramid

Length = n

Surface area	2.8608984739058E+15
Volume	6.3290199819011E+22
Height	38317277.843857