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

81421105 (number)

81421105 is an odd 8-digits composite number following 81421104 and preceding 81421106. In scientific notation, it is written as 8.1421105 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 65136880 positive integers (up to 81421105) that are relatively prime to 81421105.

Interesting facts

81421105 has 4 divisors, whose sum is 97705332
The reverse of 81421105 is 50112418
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	eighty-one million four hundred twenty-one thousand one hundred five

Notation

Scientific notation	8.1421105 × 10^7
Engineering notation	8.1421105 × 10^6

Prime Factorization of 81421105

Prime Factorization 5 × 16284221

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81421105	Product of the distinct prime numbers

The prime factorization of 81421105 is 5 × 16284221. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 59, 28, 819, 346, 869, 6656, 57814, 11399, 729694, 131174, 1282917, 1392996, 27555091, 39033231, 1720146, 803407266, 2706816268, 7727324405

Basic calculations (n = 81421105)

Multiplication

n×y

n×2	162842210
n×3	244263315
n×4	325684420
n×5	407105525

Division

n÷y

n÷2	40710552.5
n÷3	27140368.333333
n÷3	20355276.25
n÷5	16284221

Exponentiation

n^y

n²	6629396339421025
n³	5.3977277543861E+23
n⁴	4.3948895825129E+31
n⁵	3.5783676616119E+39

Nth Root

^y√n

²√n	9023.3643947255
³√n	433.42337609468
⁴√n	94.991391161123
⁵√n	38.207392373076

Divisors of 81421105

1, 5, 16284221, 81421105

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	-81421104	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 81421105 can be divided by 4 positive divisors. The sum of these divisors (counting 81421105) is 1, the average is 0.25.

Base conversion 81421105

Base	System	Value
2	Binary	100110110100110001100110001
3	Ternary	12200012121202111
4	Quaternary	10312212030301
5	Quinary	131320433410
6	Senary	12025045321
8	Octal	466461461
10	Decimal	81421105
12	Duodecimal	23326841
16	Hexadecimal	4da6331
20	Vigesimal	158hcf5
36	Base36	1ch4xd

Cryptographic Hash Functions

md5	d015e0d766f233c9df596bfa70b95c58
sha1	78e33b376e918040e107bee44fcaa876b3ff4dff
sha256	3570a0b98978e3c4b68308c55612d7feb851e25d2adcc6bca587063c07d4b185
sha512	90d1f5f99f5ebf32643e565887cb6822fa0027ef3e5bac04ac198667e67d9c70535d8e0b2c853f36f8ad6d05bbd2fc5794ba3514e67f612fab181524957aafa1
ripemd-160	d5fb0e4f59c26639b031c5a991482e1b03397f89

81421105 as geometric shapes

Circle

Radius = n

Diameter	162842210
Circumference	511583890.63033
Area	2.082686283766E+16

Sphere

Radius = n

Volume	2.2609949145676E+24
Surface area	8.3307451350641E+16
Circumference	511583890.63033

Square

Length = n

Perimeter	325684420
Area	6629396339421025
Diagonal	115146830.9544

Cube

Length = n

Surface area	39776378036526150
Volume	5.3977277543861E+23
Space diagonal	141025490.6684

Equilateral Triangle

Length = n

Perimeter	244263315
Area	2.8706128208471E+15
Altitude	70512745.3342

Triangular Pyramid

Length = n

Surface area	2.8706128208471E+15
Volume	6.3612831635421E+22
Height	38382276.984801