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

87130981 (number)

87130981 is an odd 8-digits composite number following 87130980 and preceding 87130982. In scientific notation, it is written as 8.7130981 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 74683692 positive integers (up to 87130981) that are relatively prime to 87130981.

Interesting facts

87130981 has 4 divisors, whose sum is 99578272
The reverse of 87130981 is 18903178
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	8.7130981 × 10^7
Engineering notation	8.7130981 × 10^6

Prime Factorization of 87130981

Prime Factorization 7 × 12447283

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	87130981	Product of the distinct prime numbers

The prime factorization of 87130981 is 7 × 12447283. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 89, 85, 65, 153, 5370, 2798, 27851, 65112, 614211, 618995, 2579891, 1006071, 95738458, 56579869, 632172205, 497316528, 948856561, 1995829857

Basic calculations (n = 87130981)

Multiplication

n×y

n×2	174261962
n×3	261392943
n×4	348523924
n×5	435654905

Division

n÷y

n÷2	43565490.5
n÷3	29043660.333333
n÷3	21782745.25
n÷5	17426196.2

Exponentiation

n^y

n²	7591807850022361
n³	6.6148166553595E+23
n⁴	5.7635546431661E+31
n⁵	5.0218417010617E+39

Nth Root

^y√n

²√n	9334.3977309733
³√n	443.32701965242
⁴√n	96.614686932026
⁵√n	38.72884280787

Divisors of 87130981

1, 7, 12447283, 87130981

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	-87130980	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 87130981 can be divided by 4 positive divisors. The sum of these divisors (counting 87130981) is 1, the average is 0.25.

Base conversion 87130981

Base	System	Value
2	Binary	101001100011000001101100101
3	Ternary	20001221201020101
4	Quaternary	11030120031211
5	Quinary	134301142411
6	Senary	12351304101
8	Octal	514301545
10	Decimal	87130981
12	Duodecimal	2521b031
16	Hexadecimal	5318365
20	Vigesimal	174b791
36	Base36	1fvip1

Cryptographic Hash Functions

md5	7897294fa96dd576181bde824c0c6c59
sha1	e78aba18f39660b60c3a5c58bc734a613b3591b0
sha256	ffd30ff387923dd556b365656593cb11339ae7c968cbfe5165e669cf4c084f09
sha512	4a1929a4d3d3ad9431681b90841b777a4f3ec8b7760dbcee1006902e47ba04bc8a625ac5b4d1e6ec271741dc998d70897746f4fc4372fcf76a7ab244557aad18
ripemd-160	b1b9bfc421b6ca5a35bcebf059d6678de5226732

87130981 as geometric shapes

Circle

Radius = n

Diameter	174261962
Circumference	547460099.61934
Area	2.3850367769096E+16

Sphere

Radius = n

Volume	2.7708079212428E+24
Surface area	9.5401471076382E+16
Circumference	547460099.61934

Square

Length = n

Perimeter	348523924
Area	7591807850022361
Diagonal	123221815.03307

Cube

Length = n

Surface area	45550847100134166
Volume	6.6148166553595E+23
Space diagonal	150915286.00532

Equilateral Triangle

Length = n

Perimeter	261392943
Area	3.2873492293847E+15
Altitude	75457643.002659

Triangular Pyramid

Length = n

Surface area	3.2873492293847E+15
Volume	7.7956361888507E+22
Height	41073938.344357