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68000619538 = 21021103932051
BaseRepresentation
bin111111010101001001…
…110001110000010010
320111112002011101111101
4333111021301300102
52103231124311123
651123345135014
74625055505045
oct772511616022
9214462141441
1068000619538
1126925638a25
121121932a46a
1365491592a7
14341127cc5c
151b7ed21aad
hexfd5271c12

68000619538 has 16 divisors (see below), whose sum is σ = 102202289280. Its totient is φ = 33933258000.

The previous prime is 68000619503. The next prime is 68000619539. The reversal of 68000619538 is 83591600086.

68000619538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (68000619539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105613 + ... + 2137663.

It is an arithmetic number, because the mean of its divisors is an integer number (6387643080).

Almost surely, 268000619538 is an apocalyptic number.

68000619538 is a deficient number, since it is larger than the sum of its proper divisors (34201669742).

68000619538 is a wasteful number, since it uses less digits than its factorization.

68000619538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34113.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 68000619538 in words is "sixty-eight billion, six hundred nineteen thousand, five hundred thirty-eight".

Divisors: 1 2 1021 1039 2042 2078 32051 64102 1060819 2121638 32724071 33300989 65448142 66601978 34000309769 68000619538