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68543448 = 23310128277
BaseRepresentation
bin1000001010111…
…10001111011000
311202222100221020
410011132033120
5120021342243
610445042440
71461416061
oct405361730
9152870836
1068543448
1135766786
121ab56420
131127b86c
149163568
15603e283
hex415e3d8

68543448 has 32 divisors (see below), whose sum is σ = 173061360. Its totient is φ = 22620800.

The previous prime is 68543417. The next prime is 68543459. The reversal of 68543448 is 84434586.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11715 + ... + 16562.

Almost surely, 268543448 is an apocalyptic number.

It is an amenable number.

68543448 is an abundant number, since it is smaller than the sum of its proper divisors (104517912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68543448 is a wasteful number, since it uses less digits than its factorization.

68543448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28387 (or 28383 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 68543448 is about 8279.0970522153. The cubic root of 68543448 is about 409.2499632742.

The spelling of 68543448 in words is "sixty-eight million, five hundred forty-three thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 101 202 303 404 606 808 1212 2424 28277 56554 84831 113108 169662 226216 339324 678648 2855977 5711954 8567931 11423908 17135862 22847816 34271724 68543448