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321340 = 22516067
BaseRepresentation
bin1001110011100111100
3121022210111
41032130330
540240330
610515404
72505565
oct1163474
9538714
10321340
111aa478
12135b64
13b3356
148516c
156532a
hex4e73c

321340 has 12 divisors (see below), whose sum is σ = 674856. Its totient is φ = 128528.

The previous prime is 321331. The next prime is 321341. The reversal of 321340 is 43123.

It is a self number, because there is not a number n which added to its sum of digits gives 321340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321341) by changing a digit.

321340 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 8014 + ... + 8053.

It is an arithmetic number, because the mean of its divisors is an integer number (56238).

2321340 is an apocalyptic number.

It is an amenable number.

321340 is an abundant number, since it is smaller than the sum of its proper divisors (353516).

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

321340 is a wasteful number, since it uses less digits than its factorization.

321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076 (or 16074 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 321340 is about 566.8685914742. The cubic root of 321340 is about 68.4943785679.

Adding to 321340 its reverse (43123), we get a palindrome (364463).

The spelling of 321340 in words is "three hundred twenty-one thousand, three hundred forty", and thus it is an iban number.

Divisors: 1 2 4 5 10 20 16067 32134 64268 80335 160670 321340