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

72181985 (number)

72181985 is an odd 8-digits composite number following 72181984 and preceding 72181986. In scientific notation, it is written as 7.2181985 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 57711600 positive integers (up to 72181985) that are relatively prime to 72181985.

Interesting facts

72181985 has 8 divisors, whose sum is 86669376
The reverse of 72181985 is 58918127
Previous prime number is 2347

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	seventy-two million one hundred eighty-one thousand nine hundred eighty-five

Notation

Scientific notation	7.2181985 × 10^7
Engineering notation	7.2181985 × 10^6

Prime Factorization of 72181985

Prime Factorization 5 × 2347 × 6151

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	72181985	Product of the distinct prime numbers

The prime factorization of 72181985 is 5 × 2347 × 6151. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 3, 85, 35, 6, 258, 2342, 3724, 43606, 78826, 153249, 474469, 8257048, 5260886, 83878549, 51900566, 5051165, 891567233, 2835888378, 277964414

Basic calculations (n = 72181985)

Multiplication

n×y

n×2	144363970
n×3	216545955
n×4	288727940
n×5	360909925

Division

n÷y

n÷2	36090992.5
n÷3	24060661.666667
n÷3	18045496.25
n÷5	14436397

Exponentiation

n^y

n²	5210238958540225
n³	3.7608539035177E+23
n⁴	2.714659000509E+31
n⁵	1.9594947525486E+39

Nth Root

^y√n

²√n	8495.9981756119
³√n	416.36697347103
⁴√n	92.17373907796
⁵√n	37.29801885748

Divisors of 72181985

1, 5, 2347, 6151, 11735, 30755, 14436397, 72181985

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-72181984	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 72181985 can be divided by 8 positive divisors. The sum of these divisors (counting 72181985) is 1, the average is 0.125.

Base conversion 72181985

Base	System	Value
2	Binary	100010011010110100011100001
3	Ternary	12000211020001212
4	Quaternary	10103112203201
5	Quinary	121434310420
6	Senary	11055035505
8	Octal	423264341
10	Decimal	72181985
12	Duodecimal	2020bb95
16	Hexadecimal	44d68e1
20	Vigesimal	12b2ej5
36	Base36	16z3z5

Cryptographic Hash Functions

md5	5cd2549414eed700d7c1329ca8514b8c
sha1	96eba1a9306749ad5baf18fb891e9d0664bc9342
sha256	e04f2f1c3f04a3b7425710a1be4b8fa8c6b04f40bef8f43c3a2b58134f54e775
sha512	671d316f78cf372c52ca13fedc7afd0f4f27647c6647729ded9865960e486d901dc4064091b8582200cb9f695b912b3e66200b37b87d1f2657fe5f0bad93137d
ripemd-160	4821859511417230b7a7faf173969225ec281278

72181985 as geometric shapes

Circle

Radius = n

Diameter	144363970
Circumference	453532787.59506
Area	1.6368448435597E+16

Sphere

Radius = n

Volume	1.5753427992687E+24
Surface area	6.5473793742389E+16
Circumference	453532787.59506

Square

Length = n

Perimeter	288727940
Area	5210238958540225
Diagonal	102080742.14601

Cube

Length = n

Surface area	31261433751241350
Volume	3.7608539035177E+23
Space diagonal	125022865.41117

Equilateral Triangle

Length = n

Perimeter	216545955
Area	2.2560996489416E+15
Altitude	62511432.705587

Triangular Pyramid

Length = n

Surface area	2.2560996489416E+15
Volume	4.4322088303821E+22
Height	34026914.04867