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68449368 = 23313219389
BaseRepresentation
bin1000001010001…
…11010001011000
311202210120212210
410011013101120
5120010334433
610443035120
71460544561
oct405072130
9152716783
1068449368
1135702029
121ab0baa0
1311247ab0
14913b168
156021463
hex4147458

68449368 has 32 divisors (see below), whose sum is σ = 184287600. Its totient is φ = 21061248.

The previous prime is 68449351. The next prime is 68449369. The reversal of 68449368 is 86394486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449369) 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, 109383 + ... + 110006.

Almost surely, 268449368 is an apocalyptic number.

It is an amenable number.

68449368 is an abundant number, since it is smaller than the sum of its proper divisors (115838232).

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

68449368 is a wasteful number, since it uses less digits than its factorization.

68449368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219411 (or 219407 counting only the distinct ones).

The product of its digits is 995328, while the sum is 48.

The square root of 68449368 is about 8273.4133222026. The cubic root of 68449368 is about 409.0626374896.

The spelling of 68449368 in words is "sixty-eight million, four hundred forty-nine thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 219389 438778 658167 877556 1316334 1755112 2632668 2852057 5265336 5704114 8556171 11408228 17112342 22816456 34224684 68449368