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668300924 = 221271315553
BaseRepresentation
bin100111110101010…
…111011001111100
31201120112012112002
4213311113121330
52332041112144
6150152001432
722363315124
oct4765273174
91646465462
10668300924
11313269415
12167990278
13a85c0c45
1464a85c84
153da1014e
hex27d5767c

668300924 has 12 divisors (see below), whose sum is σ = 1178736384. Its totient is φ = 331519104.

The previous prime is 668300917. The next prime is 668300929. The reversal of 668300924 is 429003866.

It is a super-2 number, since 2×6683009242 = 893252250038507552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668300929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657269 + ... + 658284.

It is an arithmetic number, because the mean of its divisors is an integer number (98228032).

Almost surely, 2668300924 is an apocalyptic number.

It is an amenable number.

668300924 is a deficient number, since it is larger than the sum of its proper divisors (510435460).

668300924 is a wasteful number, since it uses less digits than its factorization.

668300924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315684 (or 1315682 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 668300924 is about 25851.5168607183. The cubic root of 668300924 is about 874.2937098807.

The spelling of 668300924 in words is "six hundred sixty-eight million, three hundred thousand, nine hundred twenty-four".

Divisors: 1 2 4 127 254 508 1315553 2631106 5262212 167075231 334150462 668300924