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68026432 = 261062913
BaseRepresentation
bin1000000111000…
…00000001000000
311202000002201111
410003200001000
5114403321212
610430013104
71454133535
oct403400100
9152002644
1068026432
11354432a1
121a947194
131112a436
14906ad8c
155e8aea7
hex40e0040

68026432 has 14 divisors (see below), whose sum is σ = 134990078. Its totient is φ = 34013184.

The previous prime is 68026393. The next prime is 68026451. The reversal of 68026432 is 23462086.

It can be written as a sum of positive squares in only one way, i.e., 66977856 + 1048576 = 8184^2 + 1024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68026394 and 68026403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531393 + ... + 531520.

Almost surely, 268026432 is an apocalyptic number.

It is an amenable number.

68026432 is a deficient number, since it is larger than the sum of its proper divisors (66963646).

68026432 is a wasteful number, since it uses less digits than its factorization.

68026432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062925 (or 1062915 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 68026432 is about 8247.8137709335. The cubic root of 68026432 is about 408.2183887858.

The spelling of 68026432 in words is "sixty-eight million, twenty-six thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 1062913 2125826 4251652 8503304 17006608 34013216 68026432