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323913 = 3107971
BaseRepresentation
bin1001111000101001001
3121110022210
41033011021
540331123
610535333
72516232
oct1170511
9543283
10323913
112013a7
12137549
13b4585
1486089
1565e93
hex4f149

323913 has 4 divisors (see below), whose sum is σ = 431888. Its totient is φ = 215940.

The previous prime is 323903. The next prime is 323923. The reversal of 323913 is 319323.

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, and also an emirpimes, since its reverse is a distinct semiprime: 319323 = 3106441.

It is an interprime number because it is at equal distance from previous prime (323903) and next prime (323923).

It is not a de Polignac number, because 323913 - 212 = 319817 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 323913.

It is not an unprimeable number, because it can be changed into a prime (323903) 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, 53983 + ... + 53988.

It is an arithmetic number, because the mean of its divisors is an integer number (107972).

2323913 is an apocalyptic number.

It is an amenable number.

323913 is a deficient number, since it is larger than the sum of its proper divisors (107975).

323913 is a wasteful number, since it uses less digits than its factorization.

323913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107974.

The product of its digits is 486, while the sum is 21.

The square root of 323913 is about 569.1335519893. The cubic root of 323913 is about 68.6767064634.

The spelling of 323913 in words is "three hundred twenty-three thousand, nine hundred thirteen".

Divisors: 1 3 107971 323913