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

87989721 (number)

87989721 is an odd 8-digits composite number following 87989720 and preceding 87989722. In scientific notation, it is written as 8.7989721 × 10^7. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 58659812 positive integers (up to 87989721) that are relatively prime to 87989721.

Interesting facts

87989721 has 4 divisors, whose sum is 117319632
The reverse of 87989721 is 12798978
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6

Name

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

Notation

Scientific notation	8.7989721 × 10^7
Engineering notation	8.7989721 × 10^6

Prime Factorization of 87989721

Prime Factorization 3 × 29329907

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	87989721	Product of the distinct prime numbers

The prime factorization of 87989721 is 3 × 29329907. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 6, 43, 66, 78, 99, 9171, 8524, 51229, 52386, 143131, 214426, 523725, 6804698, 81845208, 94884521, 7037791, 744702579, 4486383200, 7446832480

Basic calculations (n = 87989721)

Multiplication

n×y

n×2	175979442
n×3	263969163
n×4	351958884
n×5	439948605

Division

n÷y

n÷2	43994860.5
n÷3	29329907
n÷3	21997430.25
n÷5	17597944.2

Exponentiation

n^y

n²	7742191001657841
n³	6.8123322616458E+23
n⁴	5.9941521506152E+31
n⁵	5.2742377536418E+39

Nth Root

^y√n

²√n	9380.2836311063
³√n	444.77869903698
⁴√n	96.851864365671
⁵√n	38.804883874437

Divisors of 87989721

1, 3, 29329907, 87989721

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	-87989720	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 87989721 can be divided by 4 positive divisors. The sum of these divisors (counting 87989721) is 1, the average is 0.25.

Base conversion 87989721

Base	System	Value
2	Binary	101001111101001110111011001
3	Ternary	20010120100012120
4	Quaternary	11033221313121
5	Quinary	140011132341
6	Senary	12421531453
8	Octal	517516731
10	Decimal	87989721
12	Duodecimal	25573b89
16	Hexadecimal	53e9dd9
20	Vigesimal	179ie61
36	Base36	1gdxax

Cryptographic Hash Functions

md5	fe2f381bb3c5ede97f898a20add910c1
sha1	0ded0353844ca43f63b4bd654604ae1ae183cc2c
sha256	f6a70ff5d98c73ad81fad0cd223e28ccb0abcc7bf9c0a109d5e01c82ed3267d1
sha512	4780533f27bcedfb56c58c01b51d97deaa9de28fb0f2966ef9420491cde4c275abcce0978b3b2a43f8952b727e91a3c8a58e012b299e53b5473817aecaf18b48
ripemd-160	b51840f9d091df14e880ef60959214b385e39338

87989721 as geometric shapes

Circle

Radius = n

Diameter	175979442
Circumference	552855722.17003
Area	2.4322810373497E+16

Sphere

Radius = n

Volume	2.8535430649332E+24
Surface area	9.7291241493989E+16
Circumference	552855722.17003

Square

Length = n

Perimeter	351958884
Area	7742191001657841
Diagonal	124436256.78762

Cube

Length = n

Surface area	46453146009947046
Volume	6.8123322616458E+23
Space diagonal	152402667.31581

Equilateral Triangle

Length = n

Perimeter	263969163
Area	3.3524670441935E+15
Altitude	76201333.657905

Triangular Pyramid

Length = n

Surface area	3.3524670441935E+15
Volume	8.0284105631761E+22
Height	41478752.262542