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204386493 = 371959561
BaseRepresentation
bin11000010111010…
…11000010111101
3112020120220120010
430023223002331
5404310331433
632140413433
75031153663
oct1413530275
9466526503
10204386493
11a5409663
1258547279
1333461a6c
141d204c33
1512e23e63
hexc2eb0bd

204386493 has 8 divisors (see below), whose sum is σ = 276353856. Its totient is φ = 134338400.

The previous prime is 204386491. The next prime is 204386527. The reversal of 204386493 is 394683402.

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

It is a cyclic number.

It is not a de Polignac number, because 204386493 - 21 = 204386491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204386491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479568 + ... + 479993.

It is an arithmetic number, because the mean of its divisors is an integer number (34544232).

Almost surely, 2204386493 is an apocalyptic number.

It is an amenable number.

204386493 is a deficient number, since it is larger than the sum of its proper divisors (71967363).

204386493 is an equidigital number, since it uses as much as digits as its factorization.

204386493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959635.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 204386493 is about 14296.3804160354. The cubic root of 204386493 is about 589.0480608154.

The spelling of 204386493 in words is "two hundred four million, three hundred eighty-six thousand, four hundred ninety-three".

Divisors: 1 3 71 213 959561 2878683 68128831 204386493