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

81245249 (number)

81245249 is an odd 8-digits composite number following 81245248 and preceding 81245250. In scientific notation, it is written as 8.1245249 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 80955840 positive integers (up to 81245249) that are relatively prime to 81245249.

Interesting facts

81245249 has 4 divisors, whose sum is 81534660
The reverse of 81245249 is 94254218
Previous prime number is 281

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

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

Notation

Scientific notation	8.1245249 × 10^7
Engineering notation	8.1245249 × 10^6

Prime Factorization of 81245249

Prime Factorization 281 × 289129

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81245249	Product of the distinct prime numbers

The prime factorization of 81245249 is 281 × 289129. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 4, 58, 61, 162, 107, 3661, 7703, 43050, 76445, 294079, 567454, 1374941, 1690134, 40546932, 33300717, 710305885, 961410121, 6147852874, 863804033

Basic calculations (n = 81245249)

Multiplication

n×y

n×2	162490498
n×3	243735747
n×4	324980996
n×5	406226245

Division

n÷y

n÷2	40622624.5
n÷3	27081749.666667
n÷3	20311312.25
n÷5	16249049.8

Exponentiation

n^y

n²	6600790485072001
n³	5.3628286655651E+23
n⁴	4.3570435027817E+31
n⁵	3.5398908428733E+39

Nth Root

^y√n

²√n	9013.6146467441
³√n	433.11111045054
⁴√n	94.940058177484
⁵√n	38.190873777575

Divisors of 81245249

1, 281, 289129, 81245249

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	-81245248	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 81245249 can be divided by 4 positive divisors. The sum of these divisors (counting 81245249) is 1, the average is 0.25.

Base conversion 81245249

Base	System	Value
2	Binary	100110101111011010001000001
3	Ternary	12122212200112022
4	Quaternary	10311323101001
5	Quinary	131244321444
6	Senary	12021211225
8	Octal	465732101
10	Decimal	81245249
12	Duodecimal	23260b15
16	Hexadecimal	4d7b441
20	Vigesimal	157fd29
36	Base36	1cdd8h

Cryptographic Hash Functions

md5	2ac0dcd4e99b97abad97c18e8ae5402a
sha1	faed50f499000e420e651088867e563a31f4c503
sha256	b42b0ee0759a2c94475414abd22993f32efda49e6749dac38fe0524e8511e581
sha512	0b840aa7efc8f44f7e9bdfc44a8107072370fe567019f23d987374e997f0653ff7a262e6b16ffd4307f07c768853679bf700f1cda42c188f61ab853a731bc562
ripemd-160	e72370c1772e07535060888c418cd4eb34eeb5e9

81245249 as geometric shapes

Circle

Radius = n

Diameter	162490498
Circumference	510478954.79495
Area	2.0736994895788E+16

Sphere

Radius = n

Volume	2.2463764184267E+24
Surface area	8.294797958315E+16
Circumference	510478954.79495

Square

Length = n

Perimeter	324980996
Area	6600790485072001
Diagonal	114898133.01418

Cube

Length = n

Surface area	39604742910432006
Volume	5.3628286655651E+23
Space diagonal	140720899.14158

Equilateral Triangle

Length = n

Perimeter	243735747
Area	2.8582261225655E+15
Altitude	70360449.570792

Triangular Pyramid

Length = n

Surface area	2.8582261225655E+15
Volume	6.3201541929378E+22
Height	38299377.671393