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1312007 = 19199347
BaseRepresentation
bin101000000010100000111
32110122201212
411000110013
5313441012
644042035
714103044
oct5002407
92418655
101312007
11816804
1253331b
1336c248
142621cb
151adb22
hex140507

1312007 has 8 divisors (see below), whose sum is σ = 1392000. Its totient is φ = 1233144.

The previous prime is 1312001. The next prime is 1312019. The reversal of 1312007 is 7002131.

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 1312007 - 24 = 1311991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311982 and 1312000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312001) 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 7 ways as a sum of consecutive naturals, for example, 3608 + ... + 3954.

It is an arithmetic number, because the mean of its divisors is an integer number (174000).

21312007 is an apocalyptic number.

1312007 is a deficient number, since it is larger than the sum of its proper divisors (79993).

1312007 is a wasteful number, since it uses less digits than its factorization.

1312007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1312007 is about 1145.4287406906. The cubic root of 1312007 is about 109.4742681904.

Adding to 1312007 its reverse (7002131), we get a palindrome (8314138).

The spelling of 1312007 in words is "one million, three hundred twelve thousand, seven".

Divisors: 1 19 199 347 3781 6593 69053 1312007