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320893 = 1072999
BaseRepresentation
bin1001110010101111101
3121022011221
41032111331
540232033
610513341
72504356
oct1162575
9538157
10320893
111aa101
12135851
13b30a1
1484d2d
156512d
hex4e57d

320893 has 4 divisors (see below), whose sum is σ = 324000. Its totient is φ = 317788.

The previous prime is 320867. The next prime is 320899. The reversal of 320893 is 398023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320893 - 25 = 320861 is a prime.

It is a Duffinian number.

320893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393 + ... + 1606.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2320893 is an apocalyptic number.

It is an amenable number.

320893 is a deficient number, since it is larger than the sum of its proper divisors (3107).

320893 is a wasteful number, since it uses less digits than its factorization.

320893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 320893 is about 566.4741829951. The cubic root of 320893 is about 68.4626041288.

The spelling of 320893 in words is "three hundred twenty thousand, eight hundred ninety-three".

Divisors: 1 107 2999 320893