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319319 = 71121329
BaseRepresentation
bin1001101111101010111
3121020000122
41031331113
540204234
610502155
72466650
oct1157527
9536018
10319319
111a8a00
1213495b
13b2460
1484527
156492e
hex4df57

319319 has 24 divisors (see below), whose sum is σ = 446880. Its totient is φ = 221760.

The previous prime is 319313. The next prime is 319321. The reversal of 319319 is 913913.

It is not a de Polignac number, because 319319 - 212 = 315223 is a prime.

It is a super-2 number, since 2×3193192 = 203929247522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10997 + ... + 11025.

It is an arithmetic number, because the mean of its divisors is an integer number (18620).

2319319 is an apocalyptic number.

319319 is a deficient number, since it is larger than the sum of its proper divisors (127561).

319319 is a wasteful number, since it uses less digits than its factorization.

319319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 60 counting only the distinct ones).

The product of its digits is 729, while the sum is 26.

The square root of 319319 is about 565.0831797178. The cubic root of 319319 is about 68.3504828396.

The spelling of 319319 in words is "three hundred nineteen thousand, three hundred nineteen".

Divisors: 1 7 11 13 29 77 91 121 143 203 319 377 847 1001 1573 2233 2639 3509 4147 11011 24563 29029 45617 319319