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1222249 = 71710271
BaseRepresentation
bin100101010011001101001
32022002121111
410222121221
5303102444
642110321
713250260
oct4523151
92262544
101222249
11765326
124ab3a1
1333a432
1423b5d7
15192234
hex12a669

1222249 has 8 divisors (see below), whose sum is σ = 1479168. Its totient is φ = 985920.

The previous prime is 1222241. The next prime is 1222253. The reversal of 1222249 is 9422221.

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 1222249 - 23 = 1222241 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1222241) 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, 5017 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (184896).

21222249 is an apocalyptic number.

It is an amenable number.

1222249 is a deficient number, since it is larger than the sum of its proper divisors (256919).

1222249 is a wasteful number, since it uses less digits than its factorization.

1222249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10295.

The product of its digits is 576, while the sum is 22.

The square root of 1222249 is about 1105.5537074245. The cubic root of 1222249 is about 106.9185918182.

The spelling of 1222249 in words is "one million, two hundred twenty-two thousand, two hundred forty-nine".

Divisors: 1 7 17 119 10271 71897 174607 1222249