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

81876721 (number)

81876721 is an odd 8-digits composite number following 81876720 and preceding 81876722. In scientific notation, it is written as 8.1876721 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 81111412 positive integers (up to 81876721) that are relatively prime to 81876721.

Interesting facts

81876721 has 4 divisors, whose sum is 82642032
The reverse of 81876721 is 12767818
Previous prime number is 107

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

Name	eighty-one million eight hundred seventy-six thousand seven hundred twenty-one

Notation

Scientific notation	8.1876721 × 10^7
Engineering notation	8.1876721 × 10^6

Prime Factorization of 81876721

Prime Factorization 107 × 765203

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81876721	Product of the distinct prime numbers

The prime factorization of 81876721 is 107 × 765203. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 9, 1, 42, 361, 305, 7146, 3817, 46825, 3597, 922238, 687784, 3317384, 4117882, 54274314, 16375378, 89719156, 378942989, 728085773, 2865887345

Basic calculations (n = 81876721)

Multiplication

n×y

n×2	163753442
n×3	245630163
n×4	327506884
n×5	409383605

Division

n÷y

n÷2	40938360.5
n÷3	27292240.333333
n÷3	20469180.25
n÷5	16375344.2

Exponentiation

n^y

n²	6703797441711841
n³	5.4888495277555E+23
n⁴	4.4940900139502E+31
n⁵	3.6796135422109E+39

Nth Root

^y√n

²√n	9048.5756337669
³√n	434.23032257825
⁴√n	95.124001354899
⁵√n	38.250057146946

Divisors of 81876721

1, 107, 765203, 81876721

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	-81876720	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 81876721 can be divided by 4 positive divisors. The sum of these divisors (counting 81876721) is 1, the average is 0.25.

Base conversion 81876721

Base	System	Value
2	Binary	100111000010101011011110001
3	Ternary	12201001202202011
4	Quaternary	10320111123301
5	Quinary	131430023341
6	Senary	12042522521
8	Octal	470253361
10	Decimal	81876721
12	Duodecimal	23506441
16	Hexadecimal	4e156f1
20	Vigesimal	15bebg1
36	Base36	1cqwhd

Cryptographic Hash Functions

md5	1b38b2a46f022661d63a70e9773baefc
sha1	de953bfe40302072cc20049915e7e23124a8ac18
sha256	3f6cd655103e775051ab448e7016a83397f79be96fbd606cce95379d54c8b735
sha512	1807d28e0dad3138eca35f7ea1b2192e43300d6987e8986865b18e23b8d9e3e21d0bdc1a868cda756f6a1d738035019c68a1d6df3d2e324ba025cbc14801cd3e
ripemd-160	34c2a3703672f47ab26d24392b6e7759a6930e00

81876721 as geometric shapes

Circle

Radius = n

Diameter	163753442
Circumference	514446610.38724
Area	2.1060600794036E+16

Sphere

Radius = n

Volume	2.2991639137409E+24
Surface area	8.4242403176144E+16
Circumference	514446610.38724

Square

Length = n

Perimeter	327506884
Area	6703797441711841
Diagonal	115791169.28084

Cube

Length = n

Surface area	40222784650271046
Volume	5.4888495277555E+23
Space diagonal	141814640.72914

Equilateral Triangle

Length = n

Perimeter	245630163
Area	2.9028294431738E+15
Altitude	70907320.364571

Triangular Pyramid

Length = n

Surface area	2.9028294431738E+15
Volume	6.4686712033142E+22
Height	38597056.426946