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68441152 = 261382261
BaseRepresentation
bin1000001010001…
…01010001000000
311202210011121111
410011011101000
5120010104102
610442533104
71460511613
oct405052100
9152704544
1068441152
11356a693a
121ab07194
1311244130
14913817a
15601dcd7
hex4145440

68441152 has 28 divisors (see below), whose sum is σ = 146261836. Its totient is φ = 31587840.

The previous prime is 68441147. The next prime is 68441161. The reversal of 68441152 is 25114486.

It can be written as a sum of positive squares in 2 ways, for example, as 7974976 + 60466176 = 2824^2 + 7776^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40299 + ... + 41962.

It is an arithmetic number, because the mean of its divisors is an integer number (5223637).

Almost surely, 268441152 is an apocalyptic number.

It is an amenable number.

68441152 is an abundant number, since it is smaller than the sum of its proper divisors (77820684).

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

68441152 is a wasteful number, since it uses less digits than its factorization.

68441152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82286 (or 82276 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 68441152 is about 8272.9167770503. The cubic root of 68441152 is about 409.0462701940.

The spelling of 68441152 in words is "sixty-eight million, four hundred forty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 208 416 832 82261 164522 329044 658088 1069393 1316176 2138786 2632352 4277572 5264704 8555144 17110288 34220576 68441152