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

87081987 (number)

87081987 is an odd 8-digits composite number following 87081986 and preceding 87081988. In scientific notation, it is written as 8.7081987 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 57937320 positive integers (up to 87081987) that are relatively prime to 87081987.

Interesting facts

87081987 has 8 divisors, whose sum is 116344000
The reverse of 87081987 is 78918078
Previous prime number is 499

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3

Name

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

Notation

Scientific notation	8.7081987 × 10^7
Engineering notation	8.7081987 × 10^6

Prime Factorization of 87081987

Prime Factorization 3 × 499 × 58171

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	87081987	Product of the distinct prime numbers

The prime factorization of 87081987 is 3 × 499 × 58171. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 23, 77, 371, 647, 9521, 4355, 68612, 36254, 825938, 345, 9316158, 3807334, 67707492, 72235696, 481636381, 756137428, 293856807, 8854004532

Basic calculations (n = 87081987)

Multiplication

n×y

n×2	174163974
n×3	261245961
n×4	348327948
n×5	435409935

Division

n÷y

n÷2	43540993.5
n÷3	29027329
n÷3	21770496.75
n÷5	17416397.4

Exponentiation

n^y

n²	7583272459868169
n³	6.603664337677E+23
n⁴	5.7506021200595E+31
n⁵	5.0077385906119E+39

Nth Root

^y√n

²√n	9331.7729826652
³√n	443.24390938875
⁴√n	96.601102388457
⁵√n	38.724486360071

Divisors of 87081987

1, 3, 499, 1497, 58171, 174513, 29027329, 87081987

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-87081986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 87081987 can be divided by 8 positive divisors. The sum of these divisors (counting 87081987) is 1, the average is 0.125.

Base conversion 87081987

Base	System	Value
2	Binary	101001100001100010000000011
3	Ternary	20001212020000210
4	Quaternary	11030030100003
5	Quinary	134243110422
6	Senary	12350245203
8	Octal	514142003
10	Decimal	87081987
12	Duodecimal	251b6803
16	Hexadecimal	530c403
20	Vigesimal	17454j7
36	Base36	1fugw3

Cryptographic Hash Functions

md5	cb55b1de025be7b9714d0095f7c62acc
sha1	90ec71db3adccdd55b79fb69ea7da0688bc27f7e
sha256	5ac897ba020997dd483e2e2281a109e43488b92ffefcd31a72cdaebb6585dcfd
sha512	9a7123d68d5035ae804276e368b3312fd7361723e4d755d07db2961b1dc0feba74e6c5ef689a88ebf3043df37493e3b9c38f6da927752cadc974b6dc3a299d4f
ripemd-160	8379ab5a6f6be3cc635ff3578b10aee774b7e104

87081987 as geometric shapes

Circle

Radius = n

Diameter	174163974
Circumference	547152261.2384
Area	2.3823553050092E+16

Sphere

Radius = n

Volume	2.7661364493359E+24
Surface area	9.5294212200367E+16
Circumference	547152261.2384

Square

Length = n

Perimeter	348327948
Area	7583272459868169
Diagonal	123152527.0538

Cube

Length = n

Surface area	45499634759209014
Volume	6.603664337677E+23
Space diagonal	150830425.90805

Equilateral Triangle

Length = n

Perimeter	261245961
Area	3.2836532970324E+15
Altitude	75415212.954026

Triangular Pyramid

Length = n

Surface area	3.2836532970324E+15
Volume	7.7824930564186E+22
Height	41050842.351266