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1228494 = 23204749
BaseRepresentation
bin100101011111011001110
32022102011210
410223323032
5303302434
642155250
713304421
oct4537316
92272153
101228494
11769a93
124b2b26
13340227
1423d9b8
15193ee9
hex12bece

1228494 has 8 divisors (see below), whose sum is σ = 2457000. Its totient is φ = 409496.

The previous prime is 1228489. The next prime is 1228501. The reversal of 1228494 is 4948221.

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

1228494 is an admirable number.

It is a super-3 number, since 3×12284943 = 5562120250311533352, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 102369 + ... + 102380.

It is an arithmetic number, because the mean of its divisors is an integer number (307125).

21228494 is an apocalyptic number.

1228494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228494 is a wasteful number, since it uses less digits than its factorization.

1228494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204754.

The product of its digits is 4608, while the sum is 30.

The square root of 1228494 is about 1108.3744854516. The cubic root of 1228494 is about 107.1003803687.

The spelling of 1228494 in words is "one million, two hundred twenty-eight thousand, four hundred ninety-four".

Divisors: 1 2 3 6 204749 409498 614247 1228494