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999968343 = 311292137263
BaseRepresentation
bin111011100110100…
…100111001010111
32120200121122200120
4323212210321113
54021442441333
6243120443023
733531406413
oct7346447127
92520548616
10999968343
11473502020
1223aa79473
1312c22895a
1496b3dd43
155cbc6db3
hex3b9a4e57

999968343 has 48 divisors (see below), whose sum is σ = 1523149056. Its totient is φ = 578663680.

The previous prime is 999968341. The next prime is 999968399. The reversal of 999968343 is 343869999.

It is not a de Polignac number, because 999968343 - 21 = 999968341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999968341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3802030 + ... + 3802292.

It is an arithmetic number, because the mean of its divisors is an integer number (31732272).

Almost surely, 2999968343 is an apocalyptic number.

999968343 is a deficient number, since it is larger than the sum of its proper divisors (523180713).

999968343 is a wasteful number, since it uses less digits than its factorization.

999968343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 443 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 60.

The square root of 999968343 is about 31622.2760566029. The cubic root of 999968343 is about 999.9894475553.

The spelling of 999968343 in words is "nine hundred ninety-nine million, nine hundred sixty-eight thousand, three hundred forty-three".

Divisors: 1 3 11 29 33 87 137 263 319 411 789 841 957 1507 2523 2893 3973 4521 7627 8679 9251 11919 22881 27753 36031 43703 83897 108093 115217 131109 221183 251691 345651 396341 663549 1044899 1189023 1267387 2433013 3134697 3802161 7299039 11493889 30302071 34481667 90906213 333322781 999968343