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

81321551 (number)

81321551 is an odd 8-digits composite number following 81321550 and preceding 81321552. In scientific notation, it is written as 8.1321551 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 81294312 positive integers (up to 81321551) that are relatively prime to 81321551.

Interesting facts

81321551 has 4 divisors, whose sum is 81348792
The reverse of 81321551 is 15512318
Previous prime number is 3413

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	eighty-one million three hundred twenty-one thousand five hundred fifty-one

Notation

Scientific notation	8.1321551 × 10^7
Engineering notation	8.1321551 × 10^6

Prime Factorization of 81321551

Prime Factorization 3413 × 23827

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81321551	Product of the distinct prime numbers

The prime factorization of 81321551 is 3413 × 23827. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 10, 55, 8, 919, 877, 2955, 5454, 81720, 72548, 596304, 806496, 5668424, 8941052, 98804137, 32268716, 661854100, 249575167, 5584596367, 1470434359

Basic calculations (n = 81321551)

Multiplication

n×y

n×2	162643102
n×3	243964653
n×4	325286204
n×5	406607755

Division

n÷y

n÷2	40660775.5
n÷3	27107183.666667
n÷3	20330387.75
n÷5	16264310.2

Exponentiation

n^y

n²	6613194657045601
n³	5.3779524657586E+23
n⁴	4.3734343571976E+31
n⁵	3.55654465124E+39

Nth Root

^y√n

²√n	9017.8462506299
³√n	433.24665439204
⁴√n	94.962341223402
⁵√n	38.198044525422

Divisors of 81321551

1, 3413, 23827, 81321551

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	-81321550	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 81321551 can be divided by 4 positive divisors. The sum of these divisors (counting 81321551) is 1, the average is 0.25.

Base conversion 81321551

Base	System	Value
2	Binary	100110110001101111001001111
3	Ternary	12200000120012022
4	Quaternary	10312031321033
5	Quinary	131304242201
6	Senary	12023000355
8	Octal	466157117
10	Decimal	81321551
12	Duodecimal	232990bb
16	Hexadecimal	4d8de4f
20	Vigesimal	15853hb
36	Base36	1cf03z

Cryptographic Hash Functions

md5	67acc90121872147f91d34bde654a22b
sha1	397c4d48a7c15c2588a24bda85d0e198371fd89e
sha256	7ed99dadda0695118d3a6ca77e06881c76e429a4b863affa2a59e152a7a7fa1d
sha512	cabe918f4e99d2b3b5d7b68044269427e6dfd7e7a192ccaf2a2e60ce1609a3d5f56215450e2ec2892b7a52924a3afa1e3764959e93d32351d7de1ebefced1af6
ripemd-160	1c363c767b9bc9602bb2f105cdcf2ded7385b355

81321551 as geometric shapes

Circle

Radius = n

Diameter	162643102
Circumference	510958374.40026
Area	2.0775963751334E+16

Sphere

Radius = n

Volume	2.2527114610376E+24
Surface area	8.3103855005335E+16
Circumference	510958374.40026

Square

Length = n

Perimeter	325286204
Area	6613194657045601
Diagonal	115006040.33742

Cube

Length = n

Surface area	39679167942273606
Volume	5.3779524657586E+23
Space diagonal	140853058.0823

Equilateral Triangle

Length = n

Perimeter	243964653
Area	2.8635972865865E+15
Altitude	70426529.041152

Triangular Pyramid

Length = n

Surface area	2.8635972865865E+15
Volume	6.3379777623947E+22
Height	38335346.779138