728156721 (number)

728156721 is an odd 9-digits composite number following 728156720 and preceding 728156722. In scientific notation, it is written as 7.28156721 × 10^8. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 478442448 positive integers (up to 728156721) that are relatively prime to 728156721.

Interesting facts

Basic properties

Name

Name seven hundred twenty-eight million one hundred fifty-six thousand seven hundred twenty-one

Notation

Scientific notation 7.28156721 × 10^8
Engineering notation 7.28156721 × 10^6

Prime Factorization of 728156721

Prime Factorization 3 × 107 × 199 × 11399

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 728156721
Product of the distinct prime numbers

The prime factorization of 728156721 is 3 × 107 × 199 × 11399. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 99, 65, 520, 571, 3418, 5460, 27703, 38995, 400717, 318927, 2676458, 3782839, 41756079, 68740495, 927020292, 420364261, 3628692739, 7204784949

Basic calculations (n = 728156721)

Multiplication

n×y
n×2 1456313442
n×3 2184470163
n×4 2912626884
n×5 3640783605

Division

n÷y
n÷2 364078360.5
n÷3 242718907
n÷3 182039180.25
n÷5 145631344.2

Exponentiation

ny
n2 530212210337471841
n3 3.860775845135E+26
n4 2.8112498799095E+35
n5 2.0470304944665E+44

Nth Root

y√n
2√n 26984.379203532
3√n 899.6528377092
4√n 164.26922780464
5√n 59.21680511654

Divisors of 728156721

1, 3, 107, 199, 321, 597, 11399, 21293, 34197, 63879, 1219693, 2268401, 3659079, 6805203, 242718907, 728156721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -728156720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 728156721 can be divided by 16 positive divisors. The sum of these divisors (counting 728156721) is 1, the average is 0.0625.

Base conversion 728156721

Base System Value
2 Binary 101011011001101100101000110001
3 Ternary 1212202011012020110
4 Quaternary 223121230220301
5 Quinary 2442402003341
6 Senary 200130531533
8 Octal 5331545061
10 Decimal 728156721
12 Duodecimal 183a36ba9
16 Hexadecimal 2b66ca31
20 Vigesimal b7ajbg1
36 Base36 c1ixbl

Cryptographic Hash Functions

md5 8b60e931e2d75b24733d524343c644e2
sha1 15e16ee9eb42cd53b786885fbbf8690e8bc24e28
sha256 3c05e7d4b635800087562422595e3652b18497863131269207d7a50468aeca84
sha512 6af4c0a069982a96fd83a659db5b88e8547befcad9d7b83964eb6279c40a3e0bf1539a18aa1d5491306d5110a987dba149e94d963caf78203d022adfd2b163c4
ripemd-160 aa16f36e131d2820f9fa7df5b0973e351e58c976

728156721 as geometric shapes

Circle

Radius = n
Diameter 1456313442
Circumference 4575143610.7113
Area 1.6657107848398E+18

Sphere

Radius = n
Volume 1.6171980042977E+27
Surface area 6.6628431393592E+18
Circumference 4575143610.7113

Square

Length = n
Perimeter 2912626884
Area 530212210337471841
Diagonal 1029769110.3713

Cube

Length = n
Surface area 3181273262024831046
Volume 3.860775845135E+26
Space diagonal 1261204436.6448

Equilateral Triangle

Length = n
Perimeter 2184470163
Area 2.2958862177447E+17
Altitude 630602218.32238

Triangular Pyramid

Length = n
Surface area 2.2958862177447E+17
Volume 4.5499679678936E+25
Height 343256370.12377