681985643 (number)

681985643 is an odd 9-digits composite number following 681985642 and preceding 681985644. In scientific notation, it is written as 6.81985643 × 10^8. The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors. There are 677801520 positive integers (up to 681985643) that are relatively prime to 681985643.

Interesting facts

Basic properties

Name

Name six hundred eighty-one million nine hundred eighty-five thousand six hundred forty-three

Notation

Scientific notation 6.81985643 × 10^8
Engineering notation 6.81985643 × 10^6

Prime Factorization of 681985643

Prime Factorization 163 × 4183961

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 681985643
Product of the distinct prime numbers

The prime factorization of 681985643 is 163 × 4183961. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 3, 51, 13, 70, 318, 1954, 6880, 6887, 1017, 945259, 975471, 857365, 8631911, 9327070, 87821176, 984703072, 33493949, 1203467549, 4298745854

Basic calculations (n = 681985643)

Multiplication

n×y
n×2 1363971286
n×3 2045956929
n×4 2727942572
n×5 3409928215

Division

n÷y
n÷2 340992821.5
n÷3 227328547.66667
n÷3 170496410.75
n÷5 136397128.6

Exponentiation

ny
n2 465104417258123449
n3 3.1719453506592E+26
n4 2.1632211895302E+35
n5 1.475285793893E+44

Nth Root

y√n
2√n 26114.854833983
3√n 880.22103736456
4√n 161.60091223128
5√n 58.446034006022

Divisors of 681985643

1, 163, 4183961, 681985643

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 -681985642
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 681985643 can be divided by 4 positive divisors. The sum of these divisors (counting 681985643) is 1, the average is 0.25.

Base conversion 681985643

Base System Value
2 Binary 101000101001100100011001101011
3 Ternary 1202112021110102112
4 Quaternary 220221210121223
5 Quinary 2344042020033
6 Senary 151401152535
8 Octal 5051443153
10 Decimal 681985643
12 Duodecimal 17048b74b
16 Hexadecimal 28a6466b
20 Vigesimal ad28423
36 Base36 ba1bhn

Cryptographic Hash Functions

md5 3ae0eaa2e391f0cce980debfc11d702d
sha1 e53254fb7d3cc23cfd5de639f0a1c11fd605bf9a
sha256 2e6a0c471acf6f972c74d54481f6639abf0c2966b78121df79900d73ed43ea6b
sha512 421bbeb81efc5c63d78686a68aab25429c365afdddead64d62ab147b32b4be745aacc35b7666e16b818eb3294659e20107f7820ad525e364579d477a0618db5b
ripemd-160 73538fba7e94e6050a2f8d1f9bf42b407e6ddda1

681985643 as geometric shapes

Circle

Radius = n
Diameter 1363971286
Circumference 4285042171.805
Area 1.4611686204103E+18

Sphere

Radius = n
Volume 1.3286613614959E+27
Surface area 5.8446744816411E+18
Circumference 4285042171.805

Square

Length = n
Perimeter 2727942572
Area 465104417258123449
Diagonal 964473345.67434

Cube

Length = n
Surface area 2790626503548740694
Volume 3.1719453506592E+26
Space diagonal 1181233783.7085

Equilateral Triangle

Length = n
Perimeter 2045956929
Area 2.0139612037895E+17
Altitude 590616891.85426

Triangular Pyramid

Length = n
Surface area 2.0139612037895E+17
Volume 3.7381734450071E+25
Height 321491115.22478