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1049221 = 8911789
BaseRepresentation
bin100000000001010000101
31222022021001
410000022011
5232033341
634253301
711626645
oct4001205
91868231
101049221
11657328
12427231
132a9754
141d4525
1515ad31
hex100285

1049221 has 4 divisors (see below), whose sum is σ = 1061100. Its totient is φ = 1037344.

The previous prime is 1049219. The next prime is 1049227. The reversal of 1049221 is 1229401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98596 + 950625 = 314^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049221 - 21 = 1049219 is a prime.

It is a super-2 number, since 2×10492212 = 2201729413682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1049227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5806 + ... + 5983.

It is an arithmetic number, because the mean of its divisors is an integer number (265275).

21049221 is an apocalyptic number.

It is an amenable number.

1049221 is a deficient number, since it is larger than the sum of its proper divisors (11879).

1049221 is an equidigital number, since it uses as much as digits as its factorization.

1049221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1049221 is about 1024.3148929895. The cubic root of 1049221 is about 101.6144938196.

The spelling of 1049221 in words is "one million, forty-nine thousand, two hundred twenty-one".

Divisors: 1 89 11789 1049221