815087221 (number)

815087221 is an odd 9-digits composite number following 815087220 and preceding 815087222. In scientific notation, it is written as 8.15087221 × 10^8. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 752140080 positive integers (up to 815087221) that are relatively prime to 815087221.

Interesting facts

Basic properties

Name

Name eight hundred fifteen million eighty-seven thousand two hundred twenty-one

Notation

Scientific notation 8.15087221 × 10^8
Engineering notation 8.15087221 × 10^6

Prime Factorization of 815087221

Prime Factorization 13 × 16987 × 3691

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 815087221
Product of the distinct prime numbers

The prime factorization of 815087221 is 13 × 16987 × 3691. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 7, 54, 81, 904, 982, 4775, 4864, 23820, 88647, 453690, 750945, 9500556, 6105908, 92064923, 13916549, 328047903, 968861728, 2895253441, 6255246663

Basic calculations (n = 815087221)

Multiplication

n×y
n×2 1630174442
n×3 2445261663
n×4 3260348884
n×5 4075436105

Division

n÷y
n÷2 407543610.5
n÷3 271695740.33333
n÷3 203771805.25
n÷5 163017444.2

Exponentiation

ny
n2 664367177837502841
n3 5.4151719670718E+26
n4 4.4138374698777E+35
n5 3.5976625172683E+44

Nth Root

y√n
2√n 28549.732415559
3√n 934.11718400938
4√n 168.96666066286
5√n 60.567663013981

Divisors of 815087221

1, 13, 3691, 16987, 47983, 220831, 62699017, 815087221

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 -815087220
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 815087221 can be divided by 8 positive divisors. The sum of these divisors (counting 815087221) is 1, the average is 0.125.

Base conversion 815087221

Base System Value
2 Binary 110000100101010011111001110101
3 Ternary 2002210201201110121
4 Quaternary 300211103321311
5 Quinary 3132130242341
6 Senary 212514051541
8 Octal 6045237165
10 Decimal 815087221
12 Duodecimal 1a8b79bb1
16 Hexadecimal 30953e75
20 Vigesimal cee5i11
36 Base36 dha5bp

Cryptographic Hash Functions

md5 3cab8aa013903e4fe8c56fed2e95a937
sha1 9674e2fc220ef742777a5165f71be02595fd5be2
sha256 a6f4039a9b85a96423c2e5c09546d47dc578ee07d0db6e58a712912552d40bf9
sha512 4b5e024a7093dba1ae7a277d3a50b71c23f7497d823babaf71947e89fc72e2bedf9466da82d36c0abce02a32f1a945cdc01333292bebf4e89bd41aab651c6e03
ripemd-160 dfe141d45e5f422f5c68374fc30f2575aaa13dff

815087221 as geometric shapes

Circle

Radius = n
Diameter 1630174442
Circumference 5121344051.057
Area 2.0871710451805E+18

Sphere

Radius = n
Volume 2.2683019292904E+27
Surface area 8.3486841807219E+18
Circumference 5121344051.057

Square

Length = n
Perimeter 3260348884
Area 664367177837502841
Diagonal 1152707402.4552

Cube

Length = n
Surface area 3986203067025017046
Volume 5.4151719670718E+26
Space diagonal 1411772479.3721

Equilateral Triangle

Length = n
Perimeter 2445261663
Area 2.8767942672393E+17
Altitude 705886239.68606

Triangular Pyramid

Length = n
Surface area 2.8767942672393E+17
Volume 6.3818413653463E+25
Height 384235800.8184