81978199 (number)

81978199 is an odd 8-digits composite number following 81978198 and preceding 81978200. In scientific notation, it is written as 8.1978199 × 10^7. The sum of its digits is 52. It has a total of 5 prime factors and 24 positive divisors. There are 72228096 positive integers (up to 81978199) that are relatively prime to 81978199.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred seventy-eight thousand one hundred ninety-nine

Notation

Scientific notation 8.1978199 × 10^7
Engineering notation 8.1978199 × 10^6

Prime Factorization of 81978199

Prime Factorization 47 × 17 × 37 × 47 × 59

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1744217
Product of the distinct prime numbers

The prime factorization of 81978199 is 47 × 17 × 37 × 47 × 59. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 45, 7, 644, 565, 1344, 469, 46069, 77620, 435423, 496206, 5066902, 3402418, 26019738, 23275272, 817637623, 908026947, 5166665487, 8019725300

Basic calculations (n = 81978199)

Multiplication

n×y
n×2 163956398
n×3 245934597
n×4 327912796
n×5 409890995

Division

n÷y
n÷2 40989099.5
n÷3 27326066.333333
n÷3 20494549.75
n÷5 16395639.8

Exponentiation

ny
n2 6720425111283601
n3 5.509283471374E+23
n4 4.5164113676371E+31
n5 3.7024726986202E+39

Nth Root

y√n
2√n 9054.1812992672
3√n 434.40964352164
4√n 95.153461835433
5√n 38.259533873345

Divisors of 81978199

1, 17, 37, 47, 59, 629, 799, 1003, 1739, 2183, 2209, 2773, 29563, 37111, 37553, 47141, 81733, 102601, 130331, 1389461, 1744217, 2215627, 4822247, 81978199

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81978198
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81978199 can be divided by 24 positive divisors. The sum of these divisors (counting 81978199) is 1, the average is 0.041666666666667.

Base conversion 81978199

Base System Value
2 Binary 100111000101110001101010111
3 Ternary 12201020220221121
4 Quaternary 10320232031113
5 Quinary 131441300244
6 Senary 12045024411
8 Octal 470561527
10 Decimal 81978199
12 Duodecimal 23555107
16 Hexadecimal 4e2e357
20 Vigesimal 15c759j
36 Base36 1ct2s7

Cryptographic Hash Functions

md5 7d314d33aa7be804d9903e26ab0bab39
sha1 8068852bad5c31050c420fbe23cbee2ae5ebca8e
sha256 f80914ea77e69c4e7d7070b12e4f0af142229020b89ccde23bcae2b8dee0d4a0
sha512 adfc2a956ad42fcdfaf814d008dc0beb3de986a6c0548a2e50fa7002830d65cdb1f71cd331026433c6213b0fed11cb2353a9784c62cde66c15d8a96ec6702ecc
ripemd-160 ea3c6f2ec7c0baa5078775773ca8a4429ad42445

81978199 as geometric shapes

Circle

Radius = n
Diameter 163956398
Circumference 515084215.46584
Area 2.1112838158609E+16

Sphere

Radius = n
Volume 2.3077232640283E+24
Surface area 8.4451352634436E+16
Circumference 515084215.46584

Square

Length = n
Perimeter 327912796
Area 6720425111283601
Diagonal 115934680.84472

Cube

Length = n
Surface area 40322550667701606
Volume 5.509283471374E+23
Space diagonal 141990405.78099

Equilateral Triangle

Length = n
Perimeter 245934597
Area 2.9100294353012E+15
Altitude 70995202.890496

Triangular Pyramid

Length = n
Surface area 2.9100294353012E+15
Volume 6.4927528368126E+22
Height 38644893.614907