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

81124920 (number)

81124920 is an even 8-digits composite number following 81124919 and preceding 81124921. In scientific notation, it is written as 8.1124920 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors. There are 21633216 positive integers (up to 81124920) that are relatively prime to 81124920.

Interesting facts

81124920 has 16 divisors, whose sum is 155490120
The reverse of 81124920 is 02942118
Previous prime number is 45

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	8.1124920 × 10^7
Engineering notation	8.1124920 × 10^6

Prime Factorization of 81124920

Prime Factorization 2 × 2 × 2 × 45 × 225347

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	20281230	Product of the distinct prime numbers

The prime factorization of 81124920 is 2 × 2 × 2 × 45 × 225347. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 50, 88, 247, 375, 8361, 89, 99427, 13613, 923178, 910903, 3008765, 2668764, 82175128, 29321943, 677357604, 633751494, 3373763359, 3757595774

Basic calculations (n = 81124920)

Multiplication

n×y

n×2	162249840
n×3	243374760
n×4	324499680
n×5	405624600

Division

n÷y

n÷2	40562460
n÷3	27041640
n÷3	20281230
n÷5	16224984

Exponentiation

n^y

n²	6581252645006400
n³	5.3390359432593E+23
n⁴	4.3312886377404E+31
n⁵	3.513754442336E+39

Nth Root

^y√n

²√n	9006.9373263058
³√n	432.8971837799
⁴√n	94.904885681959
⁵√n	38.179554482986

Divisors of 81124920

1, 2, 4, 8, 45, 90, 180, 360, 225347, 450694, 901388, 1802776, 10140615, 20281230, 40562460, 81124920

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81124919	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81124920 can be divided by 16 positive divisors. The sum of these divisors (counting 81124920) is 1, the average is 0.0625.

Base conversion 81124920

Base	System	Value
2	Binary	100110101011101111000111000
3	Ternary	12122122120110200
4	Quaternary	10311131320320
5	Quinary	131231444140
6	Senary	12014442200
8	Octal	465357070
10	Decimal	81124920
12	Duodecimal	23203360
16	Hexadecimal	4d5de38
20	Vigesimal	1570c60
36	Base36	1case0

Cryptographic Hash Functions

md5	f938ad9100b6c9732af663d86aa47438
sha1	3a6bb29ccf4f7f3933d42da1ab3aeb46029aa6a5
sha256	cd25ed846b7150c103e36c8cc73f0e1fe9d4b0381ee69885d3cf311ff06d08c3
sha512	caca44f9925b122fc6a56ce5008c1133627623e539539049b56a232514e86f5f337a6deb6ecc5a741adaeaf0c18071ce079bcff39696526dac354aac4951da23
ripemd-160	4526739199e5209ddedda9c98c3f073eb3f520c9

81124920 as geometric shapes

Circle

Radius = n

Diameter	162249840
Circumference	509722905.39012
Area	2.067561496097E+16

Sphere

Radius = n

Volume	2.2364101462127E+24
Surface area	8.2702459843882E+16
Circumference	509722905.39012

Square

Length = n

Perimeter	324499680
Area	6581252645006400
Diagonal	114727962.11043

Cube

Length = n

Surface area	39487515870038400
Volume	5.3390359432593E+23
Space diagonal	140512483.19996

Equilateral Triangle

Length = n

Perimeter	243374760
Area	2.8497659896495E+15
Altitude	70256241.59998

Triangular Pyramid

Length = n

Surface area	2.8497659896495E+15
Volume	6.2921142007956E+22
Height	38242654.036811