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12322705 = 517144973
BaseRepresentation
bin101111000000…
…011110010001
3212012001120111
4233000132101
511123311310
61120041321
7206512153
oct57003621
925161514
1012322705
116a5725a
124163241
132725b55
1418caad3
15113628a
hexbc0791

12322705 has 8 divisors (see below), whose sum is σ = 15657192. Its totient is φ = 9278208.

The previous prime is 12322703. The next prime is 12322711. The reversal of 12322705 is 50722321.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 11881809 = 664^2 + 3447^2 .

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 12322705 - 21 = 12322703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12322703) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 72402 + ... + 72571.

It is an arithmetic number, because the mean of its divisors is an integer number (1957149).

Almost surely, 212322705 is an apocalyptic number.

It is an amenable number.

12322705 is a deficient number, since it is larger than the sum of its proper divisors (3334487).

12322705 is a wasteful number, since it uses less digits than its factorization.

12322705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144995.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12322705 is about 3510.3710630074. The cubic root of 12322705 is about 230.9769721490.

The spelling of 12322705 in words is "twelve million, three hundred twenty-two thousand, seven hundred five".

Divisors: 1 5 17 85 144973 724865 2464541 12322705