81369908 (number)

81369908 is an even 8-digits composite number following 81369907 and preceding 81369909. In scientific notation, it is written as 8.1369908 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors. There are 40600440 positive integers (up to 81369908) that are relatively prime to 81369908.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred sixty-nine thousand nine hundred eight

Notation

Scientific notation 8.1369908 × 10^7
Engineering notation 8.1369908 × 10^6

Prime Factorization of 81369908

Prime Factorization 2 × 2 × 487 × 41771

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40684954
Product of the distinct prime numbers

The prime factorization of 81369908 is 2 × 2 × 487 × 41771. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 75, 97, 397, 115, 1499, 3931, 97970, 61806, 69088, 820176, 3346508, 4015716, 55271919, 8946209, 743867293, 346600643, 9044531995, 7548007070

Basic calculations (n = 81369908)

Multiplication

n×y
n×2 162739816
n×3 244109724
n×4 325479632
n×5 406849540

Division

n÷y
n÷2 40684954
n÷3 27123302.666667
n÷3 20342477
n÷5 16273981.6

Exponentiation

ny
n2 6621061927928464
n3 5.3875519993784E+23
n4 4.3838461053464E+31
n5 3.5671315427819E+39

Nth Root

y√n
2√n 9020.5270356005
3√n 433.33251255597
4√n 94.976455164428
5√n 38.202586257889

Divisors of 81369908

1, 2, 4, 487, 974, 1948, 41771, 83542, 167084, 20342477, 40684954, 81369908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81369907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81369908 can be divided by 12 positive divisors. The sum of these divisors (counting 81369908) is 1, the average is 0.083333333333333.

Base conversion 81369908

Base System Value
2 Binary 100110110011001101100110100
3 Ternary 12200010000112022
4 Quaternary 10312121230310
5 Quinary 131312314113
6 Senary 12024012312
8 Octal 466315464
10 Decimal 81369908
12 Duodecimal 23301098
16 Hexadecimal 4d99b34
20 Vigesimal 158b4f8
36 Base36 1cg1f8

Cryptographic Hash Functions

md5 54db800cd6666d273136fdcbb376a8dd
sha1 33e33e954f867d96bc66f8c603aec63a7f68eff8
sha256 34b30b9a2b401225ecec66eea22ca87712d58c20d62a1e85db593001a6d39564
sha512 3ffdd5ed5a93ac2757d4e15ec8528b499cfb06c715609c818bd0efeb5479892a4d24425dbff30823d64bc3fc4396a0e530903475b395fec4b6cabda256526888
ripemd-160 0170c58d51964562f74769f375596162f37f21af

81369908 as geometric shapes

Circle

Radius = n
Diameter 162739816
Circumference 511262210.39215
Area 2.0800679511743E+16

Sphere

Radius = n
Volume 2.2567325042774E+24
Surface area 8.3202718046973E+16
Circumference 511262210.39215

Square

Length = n
Perimeter 325479632
Area 6621061927928464
Diagonal 115074427.46265

Cube

Length = n
Surface area 39726371567570784
Volume 5.3875519993784E+23
Space diagonal 140936814.86321

Equilateral Triangle

Length = n
Perimeter 244109724
Area 2.867003914808E+15
Altitude 70468407.431603

Triangular Pyramid

Length = n
Surface area 2.867003914808E+15
Volume 6.3492909212594E+22
Height 38358142.48755