61397987 (number)

61397987 is an odd 8-digits composite number following 61397986 and preceding 61397988. In scientific notation, it is written as 6.1397987 × 10^7. The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors. There are 49856904 positive integers (up to 61397987) that are relatively prime to 61397987.

Interesting facts

Basic properties

Name

Name sixty-one million three hundred ninety-seven thousand nine hundred eighty-seven

Notation

Scientific notation 6.1397987 × 10^7
Engineering notation 6.1397987 × 10^6

Prime Factorization of 61397987

Prime Factorization 7 × 19 × 461639

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 61397987
Product of the distinct prime numbers

The prime factorization of 61397987 is 7 × 19 × 461639. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 29, 12, 294, 675, 8785, 5170, 9998, 8531, 535927, 176948, 6212260, 9877606, 50711323, 38060491, 962932363, 927566494, 7831090625, 4520575439

Basic calculations (n = 61397987)

Multiplication

n×y
n×2 122795974
n×3 184193961
n×4 245591948
n×5 306989935

Division

n÷y
n÷2 30698993.5
n÷3 20465995.666667
n÷3 15349496.75
n÷5 12279597.4

Exponentiation

ny
n2 3769712807652169
n3 2.3145277795796E+23
n4 1.4210734652177E+31
n5 8.725105014348E+38

Nth Root

y√n
2√n 7835.6867599464
3√n 394.50396957179
4√n 88.519414593333
5√n 36.110277550592

Divisors of 61397987

1, 7, 19, 133, 461639, 3231473, 8771141, 61397987

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -61397986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 61397987 can be divided by 8 positive divisors. The sum of these divisors (counting 61397987) is 1, the average is 0.125.

Base conversion 61397987

Base System Value
2 Binary 11101010001101101111100011
3 Ternary 11021112100012112
4 Quaternary 3222031233203
5 Quinary 111204213422
6 Senary 10031545535
8 Octal 352155743
10 Decimal 61397987
12 Duodecimal 1868b2ab
16 Hexadecimal 3a8dbe3
20 Vigesimal j3eej7
36 Base36 10jyzn

Cryptographic Hash Functions

md5 7269be220c4ab37d57774e1c0f4ba8ec
sha1 d011a85bb16cf8db0e9f06d3c4a0fd1cb42f6d0a
sha256 74ecb083d94c1ed827732cb7f4e8ea7385875285e5e22e534d97e5019ac8836f
sha512 c92c8da018a6dd7b3a7d6d3e35d8072da82201de9d2a0686e2a7f84d1f2bd3d62b129253b561f77b2e78ba28790c0128d086721d6a1bcbe5960856b536719ba3
ripemd-160 3d18eb7c46aece7eaf03da27c4deddce7a9920d7

61397987 as geometric shapes

Circle

Radius = n
Diameter 122795974
Circumference 385774929.8088
Area 1.1842902062663E+16

Sphere

Radius = n
Volume 9.6950712918091E+23
Surface area 4.7371608250654E+16
Circumference 385774929.8088

Square

Length = n
Perimeter 245591948
Area 3769712807652169
Diagonal 86829865.917807

Cube

Length = n
Surface area 22618276845913014
Volume 2.3145277795796E+23
Space diagonal 106344432.96645

Equilateral Triangle

Length = n
Perimeter 184193961
Area 1.6323335281992E+15
Altitude 53172216.483227

Triangular Pyramid

Length = n
Surface area 1.6323335281992E+15
Volume 2.7276971469756E+22
Height 28943288.639269