Search a number
-
+
206582493 = 3135296987
BaseRepresentation
bin11000101000000…
…11001011011101
3112101201110220110
430110003023131
5410341114433
632255440233
75055631215
oct1424031335
9471643813
10206582493
11a6679537
1259226079
1333a50480
141d617245
1513209963
hexc5032dd

206582493 has 8 divisors (see below), whose sum is σ = 296631328. Its totient is φ = 127127664.

The previous prime is 206582491. The next prime is 206582533. The reversal of 206582493 is 394285602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206582493 - 21 = 206582491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5296987 = 206582493 / (2 + 0 + 6 + 5 + 8 + 2 + 4 + 9 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206582491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2648455 + ... + 2648532.

It is an arithmetic number, because the mean of its divisors is an integer number (37078916).

Almost surely, 2206582493 is an apocalyptic number.

It is an amenable number.

206582493 is a deficient number, since it is larger than the sum of its proper divisors (90048835).

206582493 is a wasteful number, since it uses less digits than its factorization.

206582493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5297003.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 206582493 is about 14372.9778751656. The cubic root of 206582493 is about 591.1501961646.

The spelling of 206582493 in words is "two hundred six million, five hundred eighty-two thousand, four hundred ninety-three".

Divisors: 1 3 13 39 5296987 15890961 68860831 206582493