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

81490468 (number)

81490468 is an even 8-digits composite number following 81490467 and preceding 81490469. In scientific notation, it is written as 8.1490468 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors. There are 37870560 positive integers (up to 81490468) that are relatively prime to 81490468.

Interesting facts

81490468 has 24 divisors, whose sum is 152953920
The reverse of 81490468 is 86409418
Previous prime number is 53

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4

Name

Name	eighty-one million four hundred ninety thousand four hundred sixty-eight

Notation

Scientific notation	8.1490468 × 10^7
Engineering notation	8.1490468 × 10^6

Prime Factorization of 81490468

Prime Factorization 2 × 2 × 19 × 53 × 20231

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	40745234	Product of the distinct prime numbers

The prime factorization of 81490468 is 2 × 2 × 19 × 53 × 20231. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 9, 31, 34, 511, 495, 9701, 8978, 8184, 29010, 28043, 559579, 2837594, 6668871, 67779810, 81151413, 192917723, 869750964, 839944465, 436852819

Basic calculations (n = 81490468)

Multiplication

n×y

n×2	162980936
n×3	244471404
n×4	325961872
n×5	407452340

Division

n÷y

n÷2	40745234
n÷3	27163489.333333
n÷3	20372617
n÷5	16298093.6

Exponentiation

n^y

n²	6640696374859024
n³	5.4115345543317E+23
n⁴	4.4098848343066E+31
n⁵	3.5936357897375E+39

Nth Root

^y√n

²√n	9027.2070985438
³√n	433.54641959216
⁴√n	95.011615598009
⁵√n	38.213899965275

Divisors of 81490468

1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 20231, 40462, 80924, 384389, 768778, 1072243, 1537556, 2144486, 4288972, 20372617, 40745234, 81490468

24 divisors

τ	Total Divisors	24	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81490467	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.041666666666667	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	24	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81490468 can be divided by 24 positive divisors. The sum of these divisors (counting 81490468) is 1, the average is 0.041666666666667.

Base conversion 81490468

Base	System	Value
2	Binary	100110110110111001000100100
3	Ternary	12200100010220111
4	Quaternary	10312313020210
5	Quinary	131330143333
6	Senary	12030342404
8	Octal	466671044
10	Decimal	81490468
12	Duodecimal	2335aa04
16	Hexadecimal	4db7224
20	Vigesimal	1596638
36	Base36	1cimg4

Cryptographic Hash Functions

md5	dfb7550c6fdfc620c16663af59213c10
sha1	9c75f9ba843ddafee0f5a7e761e81da396327362
sha256	689be865286e841e8aa8ffb56ce37136cb844c75a33c005cf11f1b753fbb9cb3
sha512	0bbe42aad3f927b5c713d71fc2b47499a9c459c90f9760b89821670b2cc570d40b32125c94e66d7a276051f6489629d22e4f45fc52f3ec86d6889387d5d8fb46
ripemd-160	15864dcc469f74abf1aaf2a312cf1a579a219bd5

81490468 as geometric shapes

Circle

Radius = n

Diameter	162980936
Circumference	512019711.21279
Area	2.0862362945977E+16

Sphere

Radius = n

Volume	2.2667782934048E+24
Surface area	8.344945178391E+16
Circumference	512019711.21279

Square

Length = n

Perimeter	325961872
Area	6640696374859024
Diagonal	115244925.04973

Cube

Length = n

Surface area	39844178249154144
Volume	5.4115345543317E+23
Space diagonal	141145630.90857

Equilateral Triangle

Length = n

Perimeter	244471404
Area	2.8755058797236E+15
Altitude	70572815.454283

Triangular Pyramid

Length = n

Surface area	2.8755058797236E+15
Volume	6.3775546333221E+22
Height	38414975.016577