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

72161721 (number)

72161721 is an odd 8-digits composite number following 72161720 and preceding 72161722. In scientific notation, it is written as 7.2161721 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 48107808 positive integers (up to 72161721) that are relatively prime to 72161721.

Interesting facts

72161721 has 4 divisors, whose sum is 80179700
The reverse of 72161721 is 12716127
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	seventy-two million one hundred sixty-one thousand seven hundred twenty-one

Notation

Scientific notation	7.2161721 × 10^7
Engineering notation	7.2161721 × 10^6

Prime Factorization of 72161721

Prime Factorization 9 × 8017969

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	72161721	Product of the distinct prime numbers

The prime factorization of 72161721 is 9 × 8017969. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 4, 87, 40, 833, 44, 5918, 3100, 31149, 29618, 432108, 468916, 6082852, 7729982, 96193387, 38005922, 834792689, 720115131, 1955146426, 7263472238

Basic calculations (n = 72161721)

Multiplication

n×y

n×2	144323442
n×3	216485163
n×4	288646884
n×5	360808605

Division

n÷y

n÷2	36080860.5
n÷3	24053907
n÷3	18040430.25
n÷5	14432344.2

Exponentiation

n^y

n²	5207313977681841
n³	3.7576873841688E+23
n⁴	2.7116118862161E+31
n⁵	1.9567458039341E+39

Nth Root

^y√n

²√n	8494.8055304404
³√n	416.32800691533
⁴√n	92.167269301202
⁵√n	37.295924451401

Divisors of 72161721

1, 9, 8017969, 72161721

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	-72161720	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 72161721 can be divided by 4 positive divisors. The sum of these divisors (counting 72161721) is 1, the average is 0.25.

Base conversion 72161721

Base	System	Value
2	Binary	100010011010001100110111001
3	Ternary	12000210012021100
4	Quaternary	10103101212321
5	Quinary	121433133341
6	Senary	11054402013
8	Octal	423214671
10	Decimal	72161721
12	Duodecimal	20200309
16	Hexadecimal	44d19b9
20	Vigesimal	12b0461
36	Base36	16yoc9

Cryptographic Hash Functions

md5	82515bd03da41b21220fb10013a70b41
sha1	26b5f7657a8ac0d5d3d8898f12ee992a8692d0f7
sha256	ac48330517823cd0e7008ed4b9af0564ddf48e387c184144381529456b2c38f3
sha512	e8cd621f48eded3e26faf7b10e613847886ff24b165108ef4db7b326f0b75111a81c62b56bdf44f31082c8aa7071301ea574921222cd7e59edc0050f36b4a985
ripemd-160	220b2752371f4af79dece25f62eca4b894dea5a5

72161721 as geometric shapes

Circle

Radius = n

Diameter	144323442
Circumference	453405465.12799
Area	1.6359259337221E+16

Sphere

Radius = n

Volume	1.5740164107456E+24
Surface area	6.5437037348883E+16
Circumference	453405465.12799

Square

Length = n

Perimeter	288646884
Area	5207313977681841
Diagonal	102052084.52238

Cube

Length = n

Surface area	31243883866091046
Volume	3.7576873841688E+23
Space diagonal	124987767.13361

Equilateral Triangle

Length = n

Perimeter	216485163
Area	2.2548330950771E+15
Altitude	62493883.566805

Triangular Pyramid

Length = n

Surface area	2.2548330950771E+15
Volume	4.4284770515415E+22
Height	34017361.507461