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12252717 = 321499137
BaseRepresentation
bin101110101111…
…011000101101
3212001111120100
4232233120231
511114041332
61114341313
7206101131
oct56573055
925044510
1012252717
116a09714
12412a839
132700039
1418ad3c1
15112067c
hexbaf62d

12252717 has 12 divisors (see below), whose sum is σ = 17819100. Its totient is φ = 8112768.

The previous prime is 12252697. The next prime is 12252731. The reversal of 12252717 is 71725221.

12252717 is a `hidden beast` number, since 122 + 527 + 17 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 617796 + 11634921 = 786^2 + 3411^2 .

It is a de Polignac number, because none of the positive numbers 2k-12252717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12252797) 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, 3228 + ... + 5909.

It is an arithmetic number, because the mean of its divisors is an integer number (1484925).

Almost surely, 212252717 is an apocalyptic number.

It is an amenable number.

12252717 is a deficient number, since it is larger than the sum of its proper divisors (5566383).

12252717 is a wasteful number, since it uses less digits than its factorization.

12252717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292 (or 9289 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 12252717 is about 3500.3881213374. The cubic root of 12252717 is about 230.5388562756.

Adding to 12252717 its reverse (71725221), we get a palindrome (83977938).

The spelling of 12252717 in words is "twelve million, two hundred fifty-two thousand, seven hundred seventeen".

Divisors: 1 3 9 149 447 1341 9137 27411 82233 1361413 4084239 12252717