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

81742021 (number)

81742021 is an odd 8-digits prime number following 81742020 and preceding 81742022. In scientific notation, it is written as 8.1742021 × 10^7. The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors. There are 81742020 positive integers (up to 81742021) that are relatively prime to 81742021.

Interesting facts

81742021 has 2 divisors, whose sum is 81742022
The reverse of 81742021 is 12024718
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	eighty-one million seven hundred forty-two thousand twenty-one

Notation

Scientific notation	8.1742021 × 10^7
Engineering notation	8.1742021 × 10^6

Prime Factorization of 81742021

Prime Factorization 81742021

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81742021	Product of the distinct prime numbers

The prime factorization of 81742021 is 81742021. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 9, 5, 73, 381, 439, 1500, 9289, 47654, 94871, 438494, 288441, 9011784, 7587561, 84840653, 29026483, 818292254, 465385919, 1028216577, 9947623988

Basic calculations (n = 81742021)

Multiplication

n×y

n×2	163484042
n×3	245226063
n×4	326968084
n×5	408710105

Division

n÷y

n÷2	40871010.5
n÷3	27247340.333333
n÷3	20435505.25
n÷5	16348404.2

Exponentiation

n^y

n²	6681757997164441
n³	5.4618040252113E+23
n⁴	4.4645889932671E+31
n⁵	3.6494452724401E+39

Nth Root

^y√n

²√n	9041.1294095373
³√n	433.99206629653
⁴√n	95.084853733585
⁵√n	38.237463392556

Divisors of 81742021

1, 81742021

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81742022	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40871011	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9041.1294648401	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999755328	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81742021 can be divided by 2 positive divisors. The sum of these divisors (counting 81742021) is 81742022, the average is 40871011.

Base conversion 81742021

Base	System	Value
2	Binary	100110111110100100011000101
3	Ternary	12200210220222021
4	Quaternary	10313310203011
5	Quinary	131411221041
6	Senary	12040003141
8	Octal	467644305
10	Decimal	81742021
12	Duodecimal	234604b1
16	Hexadecimal	4df48c5
20	Vigesimal	15ahf11
36	Base36	1co0jp

Cryptographic Hash Functions

md5	3216619153ace0d210d61cc092a897ee
sha1	c8daa1f8a857635aae7850842c7e10d8368314f4
sha256	2fec75558f09c0140dce9451e8aa992f9de6c4c830ec2d7c38b4c7e6cc720a69
sha512	f784b8426f3e493c341593fcbaa85a46226799e311184c4339bef6ead02f086750ac1f975d73aa36263f40acaa0aa765953bd1ad38991abf505f1ac6c93e25ab
ripemd-160	9f2d0127477fb507430b94c8448095e100c0269b

81742021 as geometric shapes

Circle

Radius = n

Diameter	163484042
Circumference	513600265.32637
Area	2.0991361836957E+16

Sphere

Radius = n

Volume	2.2878351201268E+24
Surface area	8.3965447347827E+16
Circumference	513600265.32637

Square

Length = n

Perimeter	326968084
Area	6681757997164441
Diagonal	115600674.71399

Cube

Length = n

Surface area	40090547982986646
Volume	5.4618040252113E+23
Space diagonal	141581333.48536

Equilateral Triangle

Length = n

Perimeter	245226063
Area	2.8932860837421E+15
Altitude	70790666.742681

Triangular Pyramid

Length = n

Surface area	2.8932860837421E+15
Volume	6.4367977728982E+22
Height	38533558.237995