638961720 (number)

638961720 is an even 9-digits composite number following 638961719 and preceding 638961721. In scientific notation, it is written as 6.38961720 × 10^8. The sum of its digits is 42. It has a total of 7 prime factors and 64 positive divisors. There are 169669248 positive integers (up to 638961720) that are relatively prime to 638961720.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred sixty-one thousand seven hundred twenty

Notation

Scientific notation 6.38961720 × 10^8
Engineering notation 6.38961720 × 10^6

Prime Factorization of 638961720

Prime Factorization 2 × 2 × 2 × 3 × 5 × 239 × 22279

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 159740430
Product of the distinct prime numbers

The prime factorization of 638961720 is 2 × 2 × 2 × 3 × 5 × 239 × 22279. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 6, 73, 58, 440, 348, 7803, 6066, 53704, 62060, 725709, 458053, 3884664, 95186, 79195256, 83374189, 261975633, 858056036, 9256358410, 8182509135

Basic calculations (n = 638961720)

Multiplication

n×y
n×2 1277923440
n×3 1916885160
n×4 2555846880
n×5 3194808600

Division

n÷y
n÷2 319480860
n÷3 212987240
n÷3 159740430
n÷5 127792344

Exponentiation

ny
n2 408272079625358400
n3 2.608702302254E+26
n4 1.6668609100162E+35
n5 1.0650603140647E+44

Nth Root

y√n
2√n 25277.692141491
3√n 861.3076015971
4√n 158.98959758893
5√n 57.689259993195

Divisors of 638961720

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 717, 956, 1195, 1434, 1912, 2390, 2868, 3585, 4780, 5736, 7170, 9560, 14340, 22279, 28680, 44558, 66837, 89116, 111395, 133674, 178232, 222790, 267348, 334185, 445580, 534696, 668370, 891160, 1336740, 2673480, 5324681, 10649362, 15974043, 21298724, 26623405, 31948086, 42597448, 53246810, 63896172, 79870215, 106493620, 127792344, 159740430, 212987240, 319480860, 638961720

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638961719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638961720 can be divided by 64 positive divisors. The sum of these divisors (counting 638961720) is 1, the average is 0.015625.

Base conversion 638961720

Base System Value
2 Binary 100110000101011100100000111000
3 Ternary 1122112022121200220
4 Quaternary 212011130200320
5 Quinary 2302033233340
6 Senary 143223100040
8 Octal 4605344070
10 Decimal 638961720
12 Duodecimal 159ba1620
16 Hexadecimal 2615c838
20 Vigesimal 9jda460
36 Base36 akf60o

Cryptographic Hash Functions

md5 954b345d2de3b3e0a0ce7a56d8c94bde
sha1 11c43f506d871fb53e68f2247cf5fde5eb89595b
sha256 29f16a28db786ad344a58ae28a0c217c96051f609fb61e9d01f1949804a230f2
sha512 2a23d9ed9864a376b4bbec3ea6c25f81754ac4f85e878808917da840f5768d73113731cf6402024bbda680329f310573ae839b2eadc43d978a76cc75adbe1375
ripemd-160 63e07dfc88753e8f8493bbf2a4e21ccf5168a135

638961720 as geometric shapes

Circle

Radius = n
Diameter 1277923440
Circumference 4014714890.9542
Area 1.2826245660169E+18

Sphere

Radius = n
Volume 1.0927306650885E+27
Surface area 5.1304982640674E+18
Circumference 4014714890.9542

Square

Length = n
Perimeter 2555846880
Area 408272079625358400
Diagonal 903628330.26124

Cube

Length = n
Surface area 2449632477752150400
Volume 2.608702302254E+26
Space diagonal 1106714163.1316

Equilateral Triangle

Length = n
Perimeter 1916885160
Area 1.7678699630573E+17
Altitude 553357081.5658

Triangular Pyramid

Length = n
Surface area 1.7678699630573E+17
Volume 3.0743851467012E+25
Height 301209443.42041