15945985 (number)

15945985 is an odd 8-digits composite number following 15945984 and preceding 15945986. In scientific notation, it is written as 1.5945985 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 12 positive divisors. There are 11596640 positive integers (up to 15945985) that are relatively prime to 15945985.

Interesting facts

Basic properties

Name

Name fifteen million nine hundred forty-five thousand nine hundred eighty-five

Notation

Scientific notation 1.5945985 × 10^7
Engineering notation 1.5945985 × 10^6

Prime Factorization of 15945985

Prime Factorization 11 × 5 × 11 × 26357

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1449635
Product of the distinct prime numbers

The prime factorization of 15945985 is 11 × 5 × 11 × 26357. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 3, 37, 245, 399, 8025, 5362, 30421, 72809, 43669, 62518, 2444952, 5566627, 6231540, 2558559, 967956149, 842226157, 5982444373, 2534055918

Basic calculations (n = 15945985)

Multiplication

n×y
n×2 31891970
n×3 47837955
n×4 63783940
n×5 79729925

Division

n÷y
n÷2 7972992.5
n÷3 5315328.3333333
n÷3 3986496.25
n÷5 3189197

Exponentiation

ny
n2 254274437620225
n3 4.0546563681755E+21
n4 6.4655489627082E+28
n5 1.0309954677611E+36

Nth Root

y√n
2√n 3993.2424168838
3√n 251.70032930315
4√n 63.192107235665
5√n 27.575936494181

Divisors of 15945985

1, 5, 11, 55, 121, 605, 26357, 131785, 289927, 1449635, 3189197, 15945985

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 -15945984
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 15945985 can be divided by 12 positive divisors. The sum of these divisors (counting 15945985) is 1, the average is 0.083333333333333.

Base conversion 15945985

Base System Value
2 Binary 111100110101000100000001
3 Ternary 1010000010210001
4 Quaternary 330311010001
5 Quinary 13040232420
6 Senary 1325440001
8 Octal 74650401
10 Decimal 15945985
12 Duodecimal 5410001
16 Hexadecimal f35101
20 Vigesimal 4jd4j5
36 Base36 9hs01

Cryptographic Hash Functions

md5 d1a03fe2abe201ea3e5fa685f18e14e0
sha1 bcf3c970ab082938282e7f614721985ee452cbb3
sha256 079e30b95420a8ce7e60393fff7fb240e68f6ae661c1dc902d7d0cc2fa08105a
sha512 79df2da131a8c9ebc4de5a6de5a8a5012afee6c3e8888ec9d67eabe263f1dff5a1d9b9517c1fe737f712987560f3941e9ce40f9f2e61bcee61ab5598b0d129e7
ripemd-160 ee7416cfd62479700e50de1ca1c8ab9c09e647dc

15945985 as geometric shapes

Circle

Radius = n
Diameter 31891970
Circumference 100191578.66051
Area 7.9882670522338E+14

Sphere

Radius = n
Volume 1.6984104878788E+22
Surface area 3.1953068208935E+15
Circumference 100191578.66051

Square

Length = n
Perimeter 63783940
Area 254274437620225
Diagonal 22551028.252398

Cube

Length = n
Surface area 1525646625721350
Volume 4.0546563681755E+21
Space diagonal 27619256.196731

Equilateral Triangle

Length = n
Perimeter 47837955
Area 1.1010406125606E+14
Altitude 13809628.098366

Triangular Pyramid

Length = n
Surface area 1.1010406125606E+14
Volume 4.7784583555302E+20
Height 7517009.417466