681947981 (number)

681947981 is an odd 9-digits composite number following 681947980 and preceding 681947982. In scientific notation, it is written as 6.81947981 × 10^8. The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors. There are 542142720 positive integers (up to 681947981) that are relatively prime to 681947981.

Interesting facts

Basic properties

Name

Name six hundred eighty-one million nine hundred forty-seven thousand nine hundred eighty-one

Notation

Scientific notation 6.81947981 × 10^8
Engineering notation 6.81947981 × 10^6

Prime Factorization of 681947981

Prime Factorization 11 × 13 × 19 × 250993

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 681947981
Product of the distinct prime numbers

The prime factorization of 681947981 is 11 × 13 × 19 × 250993. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 3, 89, 65, 291, 338, 7234, 8555, 58456, 65433, 854703, 890113, 2426398, 5890333, 97796572, 79385743, 685567721, 115224213, 8593798458, 9550779488

Basic calculations (n = 681947981)

Multiplication

n×y
n×2 1363895962
n×3 2045843943
n×4 2727791924
n×5 3409739905

Division

n÷y
n÷2 340973990.5
n÷3 227315993.66667
n÷3 170486995.25
n÷5 136389596.2

Exponentiation

ny
n2 465053048789976361
n3 3.1714198768022E+26
n4 2.1627433818885E+35
n5 1.4748784827E+44

Nth Root

y√n
2√n 26114.13374018
3√n 880.20483394674
4√n 161.59868112141
5√n 58.44538846658

Divisors of 681947981

1, 11, 13, 19, 143, 209, 247, 2717, 250993, 2760923, 3262909, 4768867, 35891999, 52457537, 61995271, 681947981

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 -681947980
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 681947981 can be divided by 16 positive divisors. The sum of these divisors (counting 681947981) is 1, the average is 0.0625.

Base conversion 681947981

Base System Value
2 Binary 101000101001011011001101001101
3 Ternary 1202112012112202122
4 Quaternary 220221123031031
5 Quinary 2344034313411
6 Senary 151400302325
8 Octal 5051331515
10 Decimal 681947981
12 Duodecimal 1704719a5
16 Hexadecimal 28a5b34d
20 Vigesimal ad239j1
36 Base36 ba0ifh

Cryptographic Hash Functions

md5 7e30d9858fd8a4a20f28801cada0bb6c
sha1 c359ddbc6bb3b2452fdf0d0f93151411a8b45344
sha256 dc5a6ce5092390bcef09929b86a9ed0e71c368ab5529cc05875168fb373cda5d
sha512 daad6dcfde6dcde267367e8d8a67960a92368dc3de2db1d8e5393fa97cb4974050186fa273e74b0825f4bd1065c6755aa1cdfa350a1ab3cbc5d94c83061c6c9b
ripemd-160 8ff3c2774dff9a2b84c19effb313e3e852dc48cb

681947981 as geometric shapes

Circle

Radius = n
Diameter 1363895962
Circumference 4284805534.48
Area 1.4610072416081E+18

Sphere

Radius = n
Volume 1.3284412515214E+27
Surface area 5.8440289664325E+18
Circumference 4284805534.48

Square

Length = n
Perimeter 2727791924
Area 465053048789976361
Diagonal 964420083.56315

Cube

Length = n
Surface area 2790318292739858166
Volume 3.1714198768022E+26
Space diagonal 1181168551.211

Equilateral Triangle

Length = n
Perimeter 2045843943
Area 2.0137387717976E+17
Altitude 590584275.60551

Triangular Pyramid

Length = n
Surface area 2.0137387717976E+17
Volume 3.7375541681277E+25
Height 321473361.18772