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

81618243 (number)

81618243 is an odd 8-digits composite number following 81618242 and preceding 81618244. In scientific notation, it is written as 8.1618243 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 44184096 positive integers (up to 81618243) that are relatively prime to 81618243.

Interesting facts

81618243 has 16 divisors, whose sum is 130917120
The reverse of 81618243 is 34281618
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million six hundred eighteen thousand two hundred forty-three

Notation

Scientific notation	8.1618243 × 10^7
Engineering notation	8.1618243 × 10^6

Prime Factorization of 81618243

Prime Factorization 3 × 19 × 7 × 204557

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	81618243	Product of the distinct prime numbers

The prime factorization of 81618243 is 3 × 19 × 7 × 204557. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 85, 87, 125, 75, 5886, 1335, 77511, 15294, 826285, 350597, 2238249, 523607, 79625032, 77934655, 343891529, 890092935, 3327951606, 5048990024

Basic calculations (n = 81618243)

Multiplication

n×y

n×2	163236486
n×3	244854729
n×4	326472972
n×5	408091215

Division

n÷y

n÷2	40809121.5
n÷3	27206081
n÷3	20404560.75
n÷5	16323648.6

Exponentiation

n^y

n²	6661537590407049
n³	5.4370299380748E+23
n⁴	4.4376083068406E+31
n⁵	3.6218979312654E+39

Nth Root

^y√n

²√n	9034.2815431001
³√n	433.77289788234
⁴√n	95.048837673588
⁵√n	38.225876142698

Divisors of 81618243

1, 3, 7, 19, 21, 57, 133, 399, 204557, 613671, 1431899, 3886583, 4295697, 11659749, 27206081, 81618243

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	-81618242	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 81618243 can be divided by 16 positive divisors. The sum of these divisors (counting 81618243) is 1, the average is 0.0625.

Base conversion 81618243

Base	System	Value
2	Binary	100110111010110010101000011
3	Ternary	12200120122011220
4	Quaternary	10313112111003
5	Quinary	131343240433
6	Senary	12033210123
8	Octal	467262503
10	Decimal	81618243
12	Duodecimal	23400943
16	Hexadecimal	4dd6543
20	Vigesimal	15a25c3
36	Base36	1cld1f

Cryptographic Hash Functions

md5	73cb2a8051480c98723e284f41b86a9a
sha1	f068e73f17167e787822064fba851ef2205df586
sha256	57686f44a4339e31b787d7d3491da950c9d017d210881b0f91912a6e87ac020e
sha512	aa11fbc5772711eaa51b38e9aaa72e9395e601a5bfb57644c97ee48addb6870463e47288ca46f5de0e874f1bf5099e0dcf892f53955dcc4d31db679ae846a1b5
ripemd-160	19ee31490bd4f60be4f004f874ca39cb617fc877

81618243 as geometric shapes

Circle

Radius = n

Diameter	163236486
Circumference	512822545.21541
Area	2.0927837555635E+16

Sphere

Radius = n

Volume	2.2774577747738E+24
Surface area	8.371135022254E+16
Circumference	512822545.21541

Square

Length = n

Perimeter	326472972
Area	6661537590407049
Diagonal	115425626.18766

Cube

Length = n

Surface area	39969225542442294
Volume	5.4370299380748E+23
Space diagonal	141366943.7005

Equilateral Triangle

Length = n

Perimeter	244854729
Area	2.8845303907787E+15
Altitude	70683471.850251

Triangular Pyramid

Length = n

Surface area	2.8845303907787E+15
Volume	6.4076012312116E+22
Height	38475208.729221