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1340013 = 31923509
BaseRepresentation
bin101000111001001101101
32112002011010
411013021231
5320340023
644415433
714250513
oct5071155
92462133
101340013
11835854
12547579
1337bc0c
1426c4b3
151b7093
hex14726d

1340013 has 8 divisors (see below), whose sum is σ = 1880800. Its totient is φ = 846288.

The previous prime is 1340011. The next prime is 1340021. The reversal of 1340013 is 3100431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340013 - 21 = 1340011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340011) 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, 11698 + ... + 11811.

It is an arithmetic number, because the mean of its divisors is an integer number (235100).

21340013 is an apocalyptic number.

It is an amenable number.

1340013 is a deficient number, since it is larger than the sum of its proper divisors (540787).

1340013 is a wasteful number, since it uses less digits than its factorization.

1340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23531.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1340013 is about 1157.5893054102. The cubic root of 1340013 is about 110.2477336652.

Adding to 1340013 its reverse (3100431), we get a palindrome (4440444).

The spelling of 1340013 in words is "one million, three hundred forty thousand, thirteen".

Divisors: 1 3 19 57 23509 70527 446671 1340013