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68652438 = 2311442073
BaseRepresentation
bin1000001011110…
…00110110010110
311210011220102220
410011320312112
5120033334223
610451243210
71462351611
oct405706626
9153156386
1068652438
1135830658
121aba9506
13112b935a
149191178
1560616e3
hex4178d96

68652438 has 8 divisors (see below), whose sum is σ = 137304888. Its totient is φ = 22884144.

The previous prime is 68652433. The next prime is 68652461. The reversal of 68652438 is 83425686.

It is a sphenic number, since it is the product of 3 distinct primes.

68652438 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68652438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68652431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5721031 + ... + 5721042.

It is an arithmetic number, because the mean of its divisors is an integer number (17163111).

Almost surely, 268652438 is an apocalyptic number.

68652438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68652438 is a wasteful number, since it uses less digits than its factorization.

68652438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11442078.

The product of its digits is 276480, while the sum is 42.

The square root of 68652438 is about 8285.6766772545. The cubic root of 68652438 is about 409.4667626629.

The spelling of 68652438 in words is "sixty-eight million, six hundred fifty-two thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 11442073 22884146 34326219 68652438