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68538667246 = 277433658633
BaseRepresentation
bin111111110101001110…
…010001000011101110
320112220120121001012021
4333311032101003232
52110331344322441
651253005300354
74644311026210
oct776516210356
9215816531167
1068538667246
1127081322155
12113495646ba
13660377340a
1434628da5b0
151bb21a33d1
hexff53910ee

68538667246 has 16 divisors (see below), whose sum is σ = 117510843744. Its totient is φ = 29369718144.

The previous prime is 68538667201. The next prime is 68538667273. The reversal of 68538667246 is 64276683586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225255 + ... + 433378.

It is an arithmetic number, because the mean of its divisors is an integer number (7344427734).

Almost surely, 268538667246 is an apocalyptic number.

68538667246 is a deficient number, since it is larger than the sum of its proper divisors (48972176498).

68538667246 is a wasteful number, since it uses less digits than its factorization.

68538667246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666075.

The product of its digits is 69672960, while the sum is 61.

The spelling of 68538667246 in words is "sixty-eight billion, five hundred thirty-eight million, six hundred sixty-seven thousand, two hundred forty-six".

Divisors: 1 2 7 14 7433 14866 52031 104062 658633 1317266 4610431 9220862 4895619089 9791238178 34269333623 68538667246