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68145344 = 261064771
BaseRepresentation
bin1000000111111…
…01000011000000
311202020010211122
410003331003000
5114421122334
610432331412
71455140321
oct403750300
9152203748
1068145344
1135514673
121a9a3b68
131116c5b7
14909c448
155eb132e
hex40fd0c0

68145344 has 14 divisors (see below), whose sum is σ = 135226044. Its totient is φ = 34072640.

The previous prime is 68145323. The next prime is 68145373. The reversal of 68145344 is 44354186.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532322 + ... + 532449.

Almost surely, 268145344 is an apocalyptic number.

68145344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68145344 is a deficient number, since it is larger than the sum of its proper divisors (67080700).

68145344 is a wasteful number, since it uses less digits than its factorization.

68145344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064783 (or 1064773 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 68145344 is about 8255.0193216006. The cubic root of 68145344 is about 408.4561091679.

The spelling of 68145344 in words is "sixty-eight million, one hundred forty-five thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 32 64 1064771 2129542 4259084 8518168 17036336 34072672 68145344