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

81276987 (number)

81276987 is an odd 8-digits composite number following 81276986 and preceding 81276988. In scientific notation, it is written as 8.1276987 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 49258760 positive integers (up to 81276987) that are relatively prime to 81276987.

Interesting facts

81276987 has 8 divisors, whose sum is 118221120
The reverse of 81276987 is 78967218
Previous prime number is 11

Basic properties

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

Name

Name	eighty-one million two hundred seventy-six thousand nine hundred eighty-seven

Notation

Scientific notation	8.1276987 × 10^7
Engineering notation	8.1276987 × 10^6

Prime Factorization of 81276987

Prime Factorization 3 × 11 × 2462939

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81276987	Product of the distinct prime numbers

The prime factorization of 81276987 is 3 × 11 × 2462939. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 10, 5, 52, 50, 642, 1513, 2981, 5628, 92448, 37666, 334968, 1079085, 8895375, 93419491, 23963967, 404105484, 555274973, 7258356140, 6640126054

Basic calculations (n = 81276987)

Multiplication

n×y

n×2	162553974
n×3	243830961
n×4	325107948
n×5	406384935

Division

n÷y

n÷2	40638493.5
n÷3	27092329
n÷3	20319246.75
n÷5	16255397.4

Exponentiation

n^y

n²	6605948615798169
n³	5.369115997689E+23
n⁴	4.3638557114566E+31
n⁵	3.5468104392993E+39

Nth Root

^y√n

²√n	9015.3750337964
³√n	433.16750058222
⁴√n	94.949328769594
⁵√n	38.19385712149

Divisors of 81276987

1, 3, 11, 33, 2462939, 7388817, 27092329, 81276987

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	-81276986	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 81276987 can be divided by 8 positive divisors. The sum of these divisors (counting 81276987) is 1, the average is 0.125.

Base conversion 81276987

Base	System	Value
2	Binary	100110110000011000000111011
3	Ternary	12122221022001210
4	Quaternary	10312003000323
5	Quinary	131301330422
6	Senary	12022014203
8	Octal	466030073
10	Decimal	81276987
12	Duodecimal	23277363
16	Hexadecimal	4d8303b
20	Vigesimal	157jc97
36	Base36	1ce1q3

Cryptographic Hash Functions

md5	ae27bd622bd80d18d6ad0b51276ca915
sha1	e3754cbc909092e7f5bcc56000053a6aab235245
sha256	5f9842f1f16bcc3ec2f1be1002ed099688cc90002529499aa880562c8e644d8c
sha512	8584a7b51d92508a14438cf01d66dad786b37f99d5382ac5ad126446ecea5c9de9763453f8130bec5d433517e549546483c6ec3c48820b52eeecdc5020fd27a0
ripemd-160	a076e1c4955fc1a7a6fe544633db5f52aa054165

81276987 as geometric shapes

Circle

Radius = n

Diameter	162553974
Circumference	510678370.53023
Area	2.0753199641383E+16

Sphere

Radius = n

Volume	2.2490100499481E+24
Surface area	8.3012798565533E+16
Circumference	510678370.53023

Square

Length = n

Perimeter	325107948
Area	6605948615798169
Diagonal	114943017.32422

Cube

Length = n

Surface area	39635691694789014
Volume	5.369115997689E+23
Space diagonal	140775870.97012

Equilateral Triangle

Length = n

Perimeter	243830961
Area	2.8604596586879E+15
Altitude	70387935.485058

Triangular Pyramid

Length = n

Surface area	2.8604596586879E+15
Volume	6.3275638849051E+22
Height	38314339.108074