68721885 (number)

68721885 is an odd 8-digits composite number following 68721884 and preceding 68721886. In scientific notation, it is written as 6.8721885 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 35467200 positive integers (up to 68721885) that are relatively prime to 68721885.

Interesting facts

Basic properties

Name

Name sixty-eight million seven hundred twenty-one thousand eight hundred eighty-five

Notation

Scientific notation 6.8721885 × 10^7
Engineering notation 6.8721885 × 10^6

Prime Factorization of 68721885

Prime Factorization 15 × 9 × 31 × 16421

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 68721885
Product of the distinct prime numbers

The prime factorization of 68721885 is 15 × 9 × 31 × 16421. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 22, 98, 751, 926, 5086, 772, 14945, 63059, 309762, 331393, 412781, 7597183, 95531347, 4672185, 993385481, 35580343, 2212571752, 4671998485

Basic calculations (n = 68721885)

Multiplication

n×y
n×2 137443770
n×3 206165655
n×4 274887540
n×5 343609425

Division

n÷y
n÷2 34360942.5
n÷3 22907295
n÷3 17180471.25
n÷5 13744377

Exponentiation

ny
n2 4722697477953225
n3 3.2455267296969E+23
n4 2.2303871468266E+31
n5 1.5327640900969E+39

Nth Root

y√n
2√n 8289.8664042311
3√n 409.60478473478
4√n 91.048703473642
5√n 36.933376450736

Divisors of 68721885

1, 9, 15, 31, 135, 279, 465, 4185, 16421, 147789, 246315, 509051, 2216835, 4581459, 7635765, 68721885

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 -68721884
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 68721885 can be divided by 16 positive divisors. The sum of these divisors (counting 68721885) is 1, the average is 0.0625.

Base conversion 68721885

Base System Value
2 Binary 100000110001001110011011101
3 Ternary 11210022102201000
4 Quaternary 10012021303131
5 Quinary 120043100020
6 Senary 10452540513
8 Octal 406116335
10 Decimal 68721885
12 Duodecimal 1b021739
16 Hexadecimal 4189cdd
20 Vigesimal 119a4e5
36 Base36 14wy59

Cryptographic Hash Functions

md5 79f76d1d561df718c33e9c458cc3170d
sha1 6f0c3885a70e2edb39a523b3580136635abf13a2
sha256 a9eeb85e287c7653669e6d516d821a9d74f546553d1340b720ca9917c54f919a
sha512 7d21ae86be04e02b0adc0dbb02dbe45d6f3aa2945757a2231820189a535720cac4fb9250289d6bc96fd5922ad5c469ff0910ccf350a13c4ee8a3e14a4bc1c1be
ripemd-160 f65325aea396faf73df2461d69fa622d464859ee

68721885 as geometric shapes

Circle

Radius = n
Diameter 137443770
Circumference 431792338.11369
Area 1.4836791701865E+16

Sphere

Radius = n
Volume 1.3594830574727E+24
Surface area 5.934716680746E+16
Circumference 431792338.11369

Square

Length = n
Perimeter 274887540
Area 4722697477953225
Diagonal 97187421.798844

Cube

Length = n
Surface area 28336184867719350
Volume 3.2455267296969E+23
Space diagonal 119029796.41191

Equilateral Triangle

Length = n
Perimeter 206165655
Area 2.0449879951481E+15
Altitude 59514898.205953

Triangular Pyramid

Length = n
Surface area 2.0449879951481E+15
Volume 3.8248899318181E+22
Height 32395807.266281