168721639 (number)

168721639 is an odd 9-digits composite number following 168721638 and preceding 168721640. In scientific notation, it is written as 1.68721639 × 10^8. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 168675640 positive integers (up to 168721639) that are relatively prime to 168721639.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.68721639 × 10^8
Engineering notation 1.68721639 × 10^6

Prime Factorization of 168721639

Prime Factorization 4019 × 41981

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 168721639
Product of the distinct prime numbers

The prime factorization of 168721639 is 4019 × 41981. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 1, 95, 31, 256, 772, 8133, 9295, 26483, 24884, 29207, 929514, 9422931, 9972219, 53380444, 42180134, 732661202, 69725608, 9225392966, 4497014365

Basic calculations (n = 168721639)

Multiplication

n×y
n×2 337443278
n×3 506164917
n×4 674886556
n×5 843608195

Division

n÷y
n÷2 84360819.5
n÷3 56240546.333333
n÷3 42180409.75
n÷5 33744327.8

Exponentiation

ny
n2 28466991466846321
n3 4.8029974576853E+24
n4 8.103696031735E+32
n5 1.3672688764321E+41

Nth Root

y√n
2√n 12989.289395498
3√n 552.57376518978
4√n 113.9705637237
5√n 44.201209885381

Divisors of 168721639

1, 4019, 41981, 168721639

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -168721638
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 168721639 can be divided by 4 positive divisors. The sum of these divisors (counting 168721639) is 1, the average is 0.25.

Base conversion 168721639

Base System Value
2 Binary 1010000011100111110011100111
3 Ternary 102202110221120121
4 Quaternary 22003213303213
5 Quinary 321143043024
6 Senary 24424142411
8 Octal 1203476347
10 Decimal 168721639
12 Duodecimal 48607a07
16 Hexadecimal a0e7ce7
20 Vigesimal 2cea41j
36 Base36 2sgag7

Cryptographic Hash Functions

md5 4c8b6f22e3b1f6690d1006a6d1d48668
sha1 b649519f97084fbcdf381cde49ce960dcf8e8b0c
sha256 89d983d8e7071db566fdf4a48fbf291dcff19a507b14037166696233200c7844
sha512 db18e1656a61998a8cf7d61ac63b6c37161c1795b5b2b0fed8f668dea8c0df830ffcfac8d4830ec6b8d05d616cfa8e957c8820b75c6508adbed2587d610f9cac
ripemd-160 ef609e1787633e4cf9ab45e8eb27628fec27317e

168721639 as geometric shapes

Circle

Radius = n
Diameter 337443278
Circumference 1060109323.1681
Area 8.9431691262048E+16

Sphere

Radius = n
Volume 2.0118748704366E+25
Surface area 3.5772676504819E+17
Circumference 1060109323.1681

Square

Length = n
Perimeter 674886556
Area 28466991466846321
Diagonal 238608430.13962

Cube

Length = n
Surface area 170801948801077926
Volume 4.8029974576853E+24
Space diagonal 292234451.08429

Equilateral Triangle

Length = n
Perimeter 506164917
Area 1.2326568889802E+16
Altitude 146117225.54215

Triangular Pyramid

Length = n
Surface area 1.2326568889802E+16
Volume 5.6603867872517E+23
Height 79536143.379872