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1222713 = 321031319
BaseRepresentation
bin100101010100000111001
32022010020200
410222200321
5303111323
642112413
713251522
oct4524071
92263220
101222713
11765708
124ab709
1333a6cb
1423b849
15192443
hex12a839

1222713 has 12 divisors (see below), whose sum is σ = 1784640. Its totient is φ = 806616.

The previous prime is 1222693. The next prime is 1222717. The reversal of 1222713 is 3172221.

It is not a de Polignac number, because 1222713 - 25 = 1222681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268 + ... + 1586.

It is an arithmetic number, because the mean of its divisors is an integer number (148720).

21222713 is an apocalyptic number.

It is an amenable number.

1222713 is a deficient number, since it is larger than the sum of its proper divisors (561927).

1222713 is a wasteful number, since it uses less digits than its factorization.

1222713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1425 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 1222713 is about 1105.7635371091. The cubic root of 1222713 is about 106.9321198718.

Adding to 1222713 its reverse (3172221), we get a palindrome (4394934).

The spelling of 1222713 in words is "one million, two hundred twenty-two thousand, seven hundred thirteen".

Divisors: 1 3 9 103 309 927 1319 3957 11871 135857 407571 1222713