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

81407265 (number)

81407265 is an odd 8-digits composite number following 81407264 and preceding 81407266. In scientific notation, it is written as 8.1407265 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 43220736 positive integers (up to 81407265) that are relatively prime to 81407265.

Interesting facts

81407265 has 8 divisors, whose sum is 87227392
The reverse of 81407265 is 56270418
Previous prime number is 223

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million four hundred seven thousand two hundred sixty-five

Notation

Scientific notation	8.1407265 × 10^7
Engineering notation	8.1407265 × 10^6

Prime Factorization of 81407265

Prime Factorization 15 × 223 × 24337

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81407265	Product of the distinct prime numbers

The prime factorization of 81407265 is 15 × 223 × 24337. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 2, 19, 29, 242, 751, 3046, 2366, 80921, 12122, 329489, 452294, 2140488, 7244156, 55499663, 54509510, 274306093, 489716454, 902379407, 1320168917

Basic calculations (n = 81407265)

Multiplication

n×y

n×2	162814530
n×3	244221795
n×4	325629060
n×5	407036325

Division

n÷y

n÷2	40703632.5
n÷3	27135755
n÷3	20351816.25
n÷5	16281453

Exponentiation

n^y

n²	6627142794780225
n³	5.3949756968751E+23
n⁴	4.3919021622407E+31
n⁵	3.5753274317561E+39

Nth Root

^y√n

²√n	9022.5974641452
³√n	433.39881686261
⁴√n	94.987354232788
⁵√n	38.206093382433

Divisors of 81407265

1, 15, 223, 3345, 24337, 365055, 5427151, 81407265

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	-81407264	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 81407265 can be divided by 8 positive divisors. The sum of these divisors (counting 81407265) is 1, the average is 0.125.

Base conversion 81407265

Base	System	Value
2	Binary	100110110100010110100100001
3	Ternary	12200011220202220
4	Quaternary	10312202310201
5	Quinary	131320013030
6	Senary	12024501253
8	Octal	466426441
10	Decimal	81407265
12	Duodecimal	2331a829
16	Hexadecimal	4da2d21
20	Vigesimal	158fi35
36	Base36	1cgu8x

Cryptographic Hash Functions

md5	09ddddfc157d6328f9efeec8be58d436
sha1	291129766ba66198c6058d27aa002dbcdbfb83ff
sha256	ecfb933c93d4bdb5fe2a1681f7dac30fae50aa51e37083cd4ca3abf48ca3adc8
sha512	5383f47ae3d86b6e1b17d305805132b6b6eacb515c579b965a366057dbd7461084b7bcff00f3866e06f0e30b1b64cdc3c17967b0963793008f3aa13dc4eee79d
ripemd-160	5ad7c37c2a25935cf94071169b561d8563c4e385

81407265 as geometric shapes

Circle

Radius = n

Diameter	162814530
Circumference	511496931.34567
Area	2.0819783118372E+16

Sphere

Radius = n

Volume	2.2598421354131E+24
Surface area	8.3279132473488E+16
Circumference	511496931.34567

Square

Length = n

Perimeter	325629060
Area	6627142794780225
Diagonal	115127258.2387

Cube

Length = n

Surface area	39762856768681350
Volume	5.3949756968751E+23
Space diagonal	141001519.08522

Equilateral Triangle

Length = n

Perimeter	244221795
Area	2.8696370073933E+15
Altitude	70500759.542612

Triangular Pyramid

Length = n

Surface area	2.8696370073933E+15
Volume	6.3580398326617E+22
Height	38375752.746234