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

81506790 (number)

81506790 is an even 8-digits composite number following 81506789 and preceding 81506791. In scientific notation, it is written as 8.1506790 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 21735072 positive integers (up to 81506790) that are relatively prime to 81506790.

Interesting facts

81506790 has 8 divisors, whose sum is 123166224
The reverse of 81506790 is 09760518
Previous prime number is 135

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	eighty-one million five hundred six thousand seven hundred ninety

Notation

Scientific notation	8.1506790 × 10^7
Engineering notation	8.1506790 × 10^6

Prime Factorization of 81506790

Prime Factorization 2 × 135 × 301877

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81506790	Product of the distinct prime numbers

The prime factorization of 81506790 is 2 × 135 × 301877. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 6, 29, 60, 640, 926, 5138, 7101, 73996, 39454, 702500, 291868, 9956818, 7185814, 15750107, 47200091, 574322706, 804003439, 4446451415, 8856382261

Basic calculations (n = 81506790)

Multiplication

n×y

n×2	163013580
n×3	244520370
n×4	326027160
n×5	407533950

Division

n÷y

n÷2	40753395
n÷3	27168930
n÷3	20376697.5
n÷5	16301358

Exponentiation

n^y

n²	6643356816104100
n³	5.4147868890527E+23
n⁴	4.4134189786077E+31
n⁵	3.5972361387139E+39

Nth Root

^y√n

²√n	9028.1110981201
³√n	433.57536315018
⁴√n	95.016372789747
⁵√n	38.215430640765

Divisors of 81506790

1, 2, 135, 270, 301877, 603754, 40753395, 81506790

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	-81506789	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 81506790 can be divided by 8 positive divisors. The sum of these divisors (counting 81506790) is 1, the average is 0.125.

Base conversion 81506790

Base	System	Value
2	Binary	100110110111011000111100110
3	Ternary	12200100222022000
4	Quaternary	10312323013212
5	Quinary	131331204130
6	Senary	12030550130
8	Octal	466730746
10	Decimal	81506790
12	Duodecimal	23368346
16	Hexadecimal	4dbb1e6
20	Vigesimal	15986ja
36	Base36	1ciz1i

Cryptographic Hash Functions

md5	996822d72af2f9e3f6537a48b2f66e13
sha1	385df42c873231e1f4fa76715a05c302b85fc58b
sha256	fa98de980d44eb1077fde08bd9199f28f302b36b9726b82f8d8e4b682e0b5af0
sha512	64c96d8888bac87021af9879361531e668bfa1b2606eb2144d51e1da568f20a086b1452eecb6e2682315ca7ad39668018cf6cf91a35a03e2e4efb023d29a6cd9
ripemd-160	fe56f9d88ec5d0514d33db93271789cbc667d138

81506790 as geometric shapes

Circle

Radius = n

Diameter	163013580
Circumference	512122265.36337
Area	2.0870720968648E+16

Sphere

Radius = n

Volume	2.268140628187E+24
Surface area	8.3482883874593E+16
Circumference	512122265.36337

Square

Length = n

Perimeter	326027160
Area	6643356816104100
Diagonal	115268007.8435

Cube

Length = n

Surface area	39860140896624600
Volume	5.4147868890527E+23
Space diagonal	141173901.44185

Equilateral Triangle

Length = n

Perimeter	244520370
Area	2.8766578845753E+15
Altitude	70586950.720923

Triangular Pyramid

Length = n

Surface area	2.8766578845753E+15
Volume	6.3813875465486E+22
Height	38422669.281165