61985 (number)

61985 is an odd 5-digits composite number following 61984 and preceding 61986. In scientific notation, it is written as 6.1985 × 10^4. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 36960 positive integers (up to 61985) that are relatively prime to 61985.

Interesting facts

Basic properties

Name

Name sixty-one thousand nine hundred eighty-five

Notation

Scientific notation 6.1985 × 10^4
Engineering notation 6.1985 × 10^3

Prime Factorization of 61985

Prime Factorization 49 × 5 × 11 × 23

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 61985
Product of the distinct prime numbers

The prime factorization of 61985 is 49 × 5 × 11 × 23. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 5, 30, 8, 295, 3621, 2856, 26062, 47619, 268492, 984865, 2242859, 4062694, 38295072, 69064335, 177584454, 45595636, 9146995671, 16383471

Basic calculations (n = 61985)

Multiplication

n×y
n×2 123970
n×3 185955
n×4 247940
n×5 309925

Division

n÷y
n÷2 30992.5
n÷3 20661.666666667
n÷3 15496.25
n÷5 12397

Exponentiation

ny
n2 3842140225
n3 238155061846625
n4 1.4762041508563E+19
n5 9.1502514290828E+23

Nth Root

y√n
2√n 248.9678694129
3√n 39.57572399129
4√n 15.778715708603
5√n 9.0877698754476

Divisors of 61985

1, 5, 11, 23, 49, 55, 115, 245, 253, 539, 1127, 1265, 2695, 5635, 12397, 61985

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 -61984
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 61985 can be divided by 16 positive divisors. The sum of these divisors (counting 61985) is 1, the average is 0.0625.

Base conversion 61985

Base System Value
2 Binary 1111001000100001
3 Ternary 10011000202
4 Quaternary 33020201
5 Quinary 3440420
6 Senary 1154545
8 Octal 171041
10 Decimal 61985
12 Duodecimal 2ba55
16 Hexadecimal f221
20 Vigesimal 7ej5
36 Base36 1btt

Cryptographic Hash Functions

md5 39a4f47085d726aada6a591af099e998
sha1 4e09cf07955434b22afa3fdaabfd2bb4249fa997
sha256 0dd57cb7841d594e2b699114959520408db26c999ef51da54555d5cbcf6367d3
sha512 1711103a98836be0c35516dd4dcbd551433fcc707c318a38197681d4f0f99d7cef3280a640285fe3977000e2fd1dd5edd4cd67817312f6fcd2f9a528a3070af2
ripemd-160 1217cd3ec05a362f5b84ca589e8663b35c591d48

61985 as geometric shapes

Circle

Radius = n
Diameter 123970
Circumference 389463.24126553
Area 12070439504.922

Sphere

Radius = n
Volume 9.9758159028344E+14
Surface area 48281758019.687
Circumference 389463.24126553

Square

Length = n
Perimeter 247940
Area 3842140225
Diagonal 87660.027663696

Cube

Length = n
Surface area 23052841350
Volume 238155061846625
Space diagonal 107361.16930716

Equilateral Triangle

Length = n
Perimeter 185955
Area 1663695519.876
Altitude 53680.584653578

Triangular Pyramid

Length = n
Surface area 1663695519.876
Volume 28066843200942
Height 29220.009221232