678749921 (number)

678749921 is an odd 9-digits composite number following 678749920 and preceding 678749922. In scientific notation, it is written as 6.78749921 × 10^8. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 674957844 positive integers (up to 678749921) that are relatively prime to 678749921.

Interesting facts

Basic properties

Name

Name six hundred seventy-eight million seven hundred forty-nine thousand nine hundred twenty-one

Notation

Scientific notation 6.78749921 × 10^8
Engineering notation 6.78749921 × 10^6

Prime Factorization of 678749921

Prime Factorization 179 × 3791899

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 678749921
Product of the distinct prime numbers

The prime factorization of 678749921 is 179 × 3791899. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 2, 55, 63, 579, 162, 2556, 3027, 57318, 54403, 961628, 938469, 5150312, 1806734, 32032780, 4622938, 530365171, 947798229, 4188157549, 839791355

Basic calculations (n = 678749921)

Multiplication

n×y
n×2 1357499842
n×3 2036249763
n×4 2714999684
n×5 3393749605

Division

n÷y
n÷2 339374960.5
n÷3 226249973.66667
n÷3 169687480.25
n÷5 135749984.2

Exponentiation

ny
n2 460701455257506241
n3 3.1270107636062E+26
n4 2.1224583087638E+35
n5 1.4406184093993E+44

Nth Root

y√n
2√n 26052.829424076
3√n 878.82674266896
4√n 161.40888892523
5√n 58.390468305382

Divisors of 678749921

1, 179, 3791899, 678749921

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 -678749920
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 678749921 can be divided by 4 positive divisors. The sum of these divisors (counting 678749921) is 1, the average is 0.25.

Base conversion 678749921

Base System Value
2 Binary 101000011101001110011011100001
3 Ternary 1202022012001211222
4 Quaternary 220131032123201
5 Quinary 2342224444141
6 Senary 151203544425
8 Octal 5035163341
10 Decimal 678749921
12 Duodecimal 16b38b115
16 Hexadecimal 2874e6e1
20 Vigesimal ac23eg1
36 Base36 b83ysh

Cryptographic Hash Functions

md5 973c2ac405a808b30b80bf9398177d35
sha1 4a82ec7e59b46f1c3f1b42baacd72683ce00a0b0
sha256 5b62e6cd2526af74960445f5d51de1925e1244d8437d1cb11fa0df5a25eacdf7
sha512 87fd49c8c8a8d9d84be16b34fa3bb3f0b92ec109636c4e26438a643c81644d10eea7e0100a9c3cc1c73e9cb7e8a3cd356c75ae102852eaa9392770f891b6a2ae
ripemd-160 2b2debe98e27bd6abe86704834f7b9b44b738a9f

678749921 as geometric shapes

Circle

Radius = n
Diameter 1357499842
Circumference 4264711530.8765
Area 1.4473363073351E+18

Sphere

Radius = n
Volume 1.3098392056855E+27
Surface area 5.7893452293404E+18
Circumference 4264711530.8765

Square

Length = n
Perimeter 2714999684
Area 460701455257506241
Diagonal 959897343.73787

Cube

Length = n
Surface area 2764208731545037446
Volume 3.1270107636062E+26
Space diagonal 1175629348.8054

Equilateral Triangle

Length = n
Perimeter 2036249763
Area 1.9948958190673E+17
Altitude 587814674.40268

Triangular Pyramid

Length = n
Surface area 1.9948958190673E+17
Volume 3.6852175263154E+25
Height 319965781.24596