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1228496 = 2476781
BaseRepresentation
bin100101011111011010000
32022102011212
410223323100
5303302441
642155252
713304423
oct4537320
92272155
101228496
11769a95
124b2b28
13340229
1423d9ba
15193eeb
hex12bed0

1228496 has 10 divisors (see below), whose sum is σ = 2380242. Its totient is φ = 614240.

The previous prime is 1228489. The next prime is 1228501. The reversal of 1228496 is 6948221.

It can be written as a sum of positive squares in only one way, i.e., 1210000 + 18496 = 1100^2 + 136^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38375 + ... + 38406.

21228496 is an apocalyptic number.

1228496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1228496 is a deficient number, since it is larger than the sum of its proper divisors (1151746).

1228496 is an equidigital number, since it uses as much as digits as its factorization.

1228496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76789 (or 76783 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 1228496 is about 1108.3753876733. The cubic root of 1228496 is about 107.1004384888.

Adding to 1228496 its sum of digits (32), we get a triangular number (1228528 = T1567).

The spelling of 1228496 in words is "one million, two hundred twenty-eight thousand, four hundred ninety-six".

Divisors: 1 2 4 8 16 76781 153562 307124 614248 1228496