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1311352 = 23723417
BaseRepresentation
bin101000000001001111000
32110121211121
411000021320
5313430402
644035024
714101120
oct5001170
92417747
101311352
11816269
12532a74
1336bb63
14261c80
151ad837
hex140278

1311352 has 16 divisors (see below), whose sum is σ = 2810160. Its totient is φ = 561984.

The previous prime is 1311341. The next prime is 1311353. The reversal of 1311352 is 2531131.

1311352 is nontrivially palindromic in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11653 + ... + 11764.

It is an arithmetic number, because the mean of its divisors is an integer number (175635).

21311352 is an apocalyptic number.

It is an amenable number.

1311352 is an abundant number, since it is smaller than the sum of its proper divisors (1498808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311352 is a wasteful number, since it uses less digits than its factorization.

1311352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23430 (or 23426 counting only the distinct ones).

The product of its digits is 90, while the sum is 16.

The square root of 1311352 is about 1145.1427858569. The cubic root of 1311352 is about 109.4560473573.

Adding to 1311352 its reverse (2531131), we get a palindrome (3842483).

The spelling of 1311352 in words is "one million, three hundred eleven thousand, three hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 23417 46834 93668 163919 187336 327838 655676 1311352