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320412 = 22326701
BaseRepresentation
bin1001110001110011100
3121021112010
41032032130
540223122
610511220
72503101
oct1161634
9537463
10320412
111a9804
12135510
13b2ac1
1484aa8
1564e0c
hex4e39c

320412 has 12 divisors (see below), whose sum is σ = 747656. Its totient is φ = 106800.

The previous prime is 320401. The next prime is 320417. The reversal of 320412 is 214023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 26701 = 320412 / (3 + 2 + 0 + 4 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320417) by changing a digit.

320412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13339 + ... + 13362.

2320412 is an apocalyptic number.

It is an amenable number.

320412 is an abundant number, since it is smaller than the sum of its proper divisors (427244).

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

320412 is a wasteful number, since it uses less digits than its factorization.

320412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26708 (or 26706 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 320412 is about 566.0494678029. The cubic root of 320412 is about 68.4283798651.

Subtracting from 320412 its sum of digits (12), we obtain a triangular number (320400 = T800).

Adding to 320412 its reverse (214023), we get a palindrome (534435).

The spelling of 320412 in words is "three hundred twenty thousand, four hundred twelve", and thus it is an iban number.

Divisors: 1 2 3 4 6 12 26701 53402 80103 106804 160206 320412