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68018344 = 23411311583
BaseRepresentation
bin1000000110111…
…10000010101000
311201222200121221
410003132002220
5114403041334
610425511424
71454101132
oct403360250
9151880557
1068018344
1135438209
121a942574
1311126854
149068052
155e888b4
hex40de0a8

68018344 has 32 divisors (see below), whose sum is σ = 131725440. Its totient is φ = 32905600.

The previous prime is 68018341. The next prime is 68018359. The reversal of 68018344 is 44381086.

It is not an unprimeable number, because it can be changed into a prime (68018341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42177 + ... + 43759.

It is an arithmetic number, because the mean of its divisors is an integer number (4116420).

Almost surely, 268018344 is an apocalyptic number.

It is an amenable number.

68018344 is a deficient number, since it is larger than the sum of its proper divisors (63707096).

68018344 is a wasteful number, since it uses less digits than its factorization.

68018344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 68018344 is about 8247.3234446092. The cubic root of 68018344 is about 408.2022097748.

The spelling of 68018344 in words is "sixty-eight million, eighteen thousand, three hundred forty-four".

Divisors: 1 2 4 8 41 82 131 164 262 328 524 1048 1583 3166 5371 6332 10742 12664 21484 42968 64903 129806 207373 259612 414746 519224 829492 1658984 8502293 17004586 34009172 68018344