81259997 (number)

81259997 is an odd 8-digits composite number following 81259996 and preceding 81259998. In scientific notation, it is written as 8.1259997 × 10^7. The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors. There are 63383040 positive integers (up to 81259997) that are relatively prime to 81259997.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred fifty-nine thousand nine hundred ninety-seven

Notation

Scientific notation 8.1259997 × 10^7
Engineering notation 8.1259997 × 10^6

Prime Factorization of 81259997

Prime Factorization 7 × 13 × 71 × 12577

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81259997
Product of the distinct prime numbers

The prime factorization of 81259997 is 7 × 13 × 71 × 12577. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 79, 95, 162, 391, 7214, 3747, 49152, 53574, 651537, 110256, 1895512, 1637770, 34115383, 75990041, 710869522, 892713342, 9892091748, 8824916617

Basic calculations (n = 81259997)

Multiplication

n×y
n×2 162519994
n×3 243779991
n×4 325039988
n×5 406299985

Division

n÷y
n÷2 40629998.5
n÷3 27086665.666667
n÷3 20314999.25
n÷5 16251999.4

Exponentiation

ny
n2 6603187112440009
n3 5.3657496494731E+23
n4 4.3602080041894E+31
n5 3.5431048933981E+39

Nth Root

y√n
2√n 9014.4327053897
3√n 433.13731561854
4√n 94.944366369942
5√n 38.192260192464

Divisors of 81259997

1, 7, 13, 71, 91, 497, 923, 6461, 12577, 88039, 163501, 892967, 1144507, 6250769, 11608571, 81259997

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 -81259996
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 81259997 can be divided by 16 positive divisors. The sum of these divisors (counting 81259997) is 1, the average is 0.0625.

Base conversion 81259997

Base System Value
2 Binary 100110101111110110111011101
3 Ternary 12122220102202112
4 Quaternary 10311332313131
5 Quinary 131300304442
6 Senary 12021403405
8 Octal 465766735
10 Decimal 81259997
12 Duodecimal 23269565
16 Hexadecimal 4d7eddd
20 Vigesimal 157h9jh
36 Base36 1cdom5

Cryptographic Hash Functions

md5 31e104ea812fd0ef374ef8da2497b553
sha1 65ae7300b3411c271442a36092f00be9a299dbb8
sha256 fb68fb305539833cac70064bc46498612d112ee33c295f901511b3c3a7ed3f25
sha512 caacfc68f94b4e9157eef4bd2244dd8a08d275340b7a0c5013b1e36cd361daacbf8b9c7bbb53085e7987a1c533900f89aa40a4dc40da76ce6504d4a63377546e
ripemd-160 ebe7592a182aaf860457eb596a4a9ee5b6820826

81259997 as geometric shapes

Circle

Radius = n
Diameter 162519994
Circumference 510571619.21186
Area 2.074452412272E+16

Sphere

Radius = n
Volume 2.2475999573049E+24
Surface area 8.2978096490881E+16
Circumference 510571619.21186

Square

Length = n
Perimeter 325039988
Area 6603187112440009
Diagonal 114918989.8358

Cube

Length = n
Surface area 39619122674640054
Volume 5.3657496494731E+23
Space diagonal 140746443.42689

Equilateral Triangle

Length = n
Perimeter 243779991
Area 2.8592638926575E+15
Altitude 70373221.713447

Triangular Pyramid

Length = n
Surface area 2.8592638926575E+15
Volume 6.3235966054863E+22
Height 38306329.945266