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68055278 = 2132125759
BaseRepresentation
bin1000000111001…
…11000011101110
311202001120021212
410003213003232
5114410232103
610430354422
71454313614
oct403470356
9152046255
1068055278
1135462a35
121a95ba12
131113a5c5
1490776b4
155e947d8
hex40e70ee

68055278 has 8 divisors (see below), whose sum is σ = 102164160. Its totient is φ = 34000560.

The previous prime is 68055241. The next prime is 68055287. The reversal of 68055278 is 87255086.

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

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 3 ways as a sum of consecutive naturals, for example, 10238 + ... + 15521.

It is an arithmetic number, because the mean of its divisors is an integer number (12770520).

Almost surely, 268055278 is an apocalyptic number.

68055278 is a deficient number, since it is larger than the sum of its proper divisors (34108882).

68055278 is a wasteful number, since it uses less digits than its factorization.

68055278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27082.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 68055278 is about 8249.5622914189. The cubic root of 68055278 is about 408.2760810841.

The spelling of 68055278 in words is "sixty-eight million, fifty-five thousand, two hundred seventy-eight".

Divisors: 1 2 1321 2642 25759 51518 34027639 68055278