642753721 (number)

642753721 is an odd 9-digits composite number following 642753720 and preceding 642753722. In scientific notation, it is written as 6.42753721 × 10^8. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 617475360 positive integers (up to 642753721) that are relatively prime to 642753721.

Interesting facts

Basic properties

Name

Name six hundred forty-two million seven hundred fifty-three thousand seven hundred twenty-one

Notation

Scientific notation 6.42753721 × 10^8
Engineering notation 6.42753721 × 10^6

Prime Factorization of 642753721

Prime Factorization 31 × 137 × 151343

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 642753721
Product of the distinct prime numbers

The prime factorization of 642753721 is 31 × 137 × 151343. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 43, 36, 634, 143, 683, 8220, 70329, 56004, 503262, 273809, 2976112, 9309372, 21751730, 11164853, 911732476, 469202631, 756463167, 7020876897

Basic calculations (n = 642753721)

Multiplication

n×y
n×2 1285507442
n×3 1928261163
n×4 2571014884
n×5 3213768605

Division

n÷y
n÷2 321376860.5
n÷3 214251240.33333
n÷3 160688430.25
n÷5 128550744.2

Exponentiation

ny
n2 413132345859345841
n3 2.6554235256655E+26
n4 1.7067833519525E+35
n5 1.0970413504083E+44

Nth Root

y√n
2√n 25352.588053293
3√n 863.0080892333
4√n 159.22496052219
5√n 57.757570900652

Divisors of 642753721

1, 31, 137, 4247, 151343, 4691633, 20733991, 642753721

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 -642753720
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 642753721 can be divided by 8 positive divisors. The sum of these divisors (counting 642753721) is 1, the average is 0.125.

Base conversion 642753721

Base System Value
2 Binary 100110010011111010010010111001
3 Ternary 1122210110021100101
4 Quaternary 212103322102321
5 Quinary 2304021104341
6 Senary 143440235401
8 Octal 4623722271
10 Decimal 642753721
12 Duodecimal 15b30bb61
16 Hexadecimal 264fa4b9
20 Vigesimal a0h4461
36 Base36 amofy1

Cryptographic Hash Functions

md5 d3ac8463bb3ae163fbb9fdd21a3b1e56
sha1 c3eb463512db765fd09981edb5f9a5cb3c650d63
sha256 3f69db55ab06b079621f0334aaf9e8a82e0bd2475a77b8726c8e9a660b7ec001
sha512 3356c045f88b4d81187e3be35109cf418c5ab2962d2068f63dce552d082c6c5119f0e97fc63ca56f35f0470cd921deb85c97cbcb0d81ea8dffe24b895eb5fe36
ripemd-160 15db913feaa1e28122e590f9f12f220fcb7da691

642753721 as geometric shapes

Circle

Radius = n
Diameter 1285507442
Circumference 4038540735.9222
Area 1.297893542712E+18

Sphere

Radius = n
Volume 1.1123012053867E+27
Surface area 5.1915741708482E+18
Circumference 4038540735.9222

Square

Length = n
Perimeter 2571014884
Area 413132345859345841
Diagonal 908991029.50397

Cube

Length = n
Surface area 2478794075156075046
Volume 2.6554235256655E+26
Space diagonal 1113282101.526

Equilateral Triangle

Length = n
Perimeter 1928261163
Area 1.7889155331963E+17
Altitude 556641050.76298

Triangular Pyramid

Length = n
Surface area 1.7889155331963E+17
Volume 3.129446636534E+25
Height 302997009.83466