68721870 (number)

68721870 is an even 8-digits composite number following 68721869 and preceding 68721871. In scientific notation, it is written as 6.8721870 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 15707808 positive integers (up to 68721870) that are relatively prime to 68721870.

Interesting facts

Basic properties

Name

Name sixty-eight million seven hundred twenty-one thousand eight hundred seventy

Notation

Scientific notation 6.8721870 × 10^7
Engineering notation 6.8721870 × 10^6

Prime Factorization of 68721870

Prime Factorization 2 × 15 × 7 × 327247

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 68721870
Product of the distinct prime numbers

The prime factorization of 68721870 is 2 × 15 × 7 × 327247. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 47, 41, 351, 153, 1520, 8035, 48404, 24400, 161467, 555463, 1148691, 9608558, 21540090, 56169504, 112137357, 547207363, 4790065112, 3060096128

Basic calculations (n = 68721870)

Multiplication

n×y
n×2 137443740
n×3 206165610
n×4 274887480
n×5 343609350

Division

n÷y
n÷2 34360935
n÷3 22907290
n÷3 17180467.5
n÷5 13744374

Exponentiation

ny
n2 4722695416296900
n3 3.2455246044835E+23
n4 2.2303851995112E+31
n5 1.5327624173073E+39

Nth Root

y√n
2√n 8289.865499512
3√n 409.60475493315
4√n 91.048698505317
5√n 36.933374838438

Divisors of 68721870

1, 2, 7, 14, 15, 30, 105, 210, 327247, 654494, 2290729, 4581458, 4908705, 9817410, 34360935, 68721870

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 -68721869
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 68721870 can be divided by 16 positive divisors. The sum of these divisors (counting 68721870) is 1, the average is 0.0625.

Base conversion 68721870

Base System Value
2 Binary 100000110001001110011001110
3 Ternary 11210022102200110
4 Quaternary 10012021303032
5 Quinary 120043044440
6 Senary 10452540450
8 Octal 406116316
10 Decimal 68721870
12 Duodecimal 1b021726
16 Hexadecimal 4189cce
20 Vigesimal 119a4da
36 Base36 14wy4u

Cryptographic Hash Functions

md5 d29f372e48fe8e0484141c9eeab91092
sha1 117021b5a838f18f14d9cd0bf509d6bcd285b494
sha256 12133f0d2dd0e75837aefbffeaa1343c85e0a6baa321c0679ab70a41bad03ed2
sha512 f935c0dab0fc9229e7baeac40d0cb3dfd4f64a321d5b8187a733d695ef056c80c06aec8096cd09d7551cac6b780026ac478f5b3815658171658bed5ecc1bf9bd
ripemd-160 3a2081d1fe36cd1733edfdc27c4b81325860a1b0

68721870 as geometric shapes

Circle

Radius = n
Diameter 137443740
Circumference 431792243.86591
Area 1.4836785224981E+16

Sphere

Radius = n
Volume 1.3594821672654E+24
Surface area 5.9347140899922E+16
Circumference 431792243.86591

Square

Length = n
Perimeter 274887480
Area 4722695416296900
Diagonal 97187400.585641

Cube

Length = n
Surface area 28336172497781400
Volume 3.2455246044835E+23
Space diagonal 119029770.43114

Equilateral Triangle

Length = n
Perimeter 206165610
Area 2.0449871024247E+15
Altitude 59514885.215572

Triangular Pyramid

Length = n
Surface area 2.0449871024247E+15
Volume 3.8248874272301E+22
Height 32395800.195214