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68409046024 = 2311777375523
BaseRepresentation
bin111111101101011111…
…110011010000001000
320112120112200121022021
4333231133303100020
52110100203433044
651232055134224
74641145203604
oct775537632010
9215515617267
1068409046024
1127015139880
1211312074374
1365b295b177
14344d5d8504
151ba5aebe84
hexfed7f3408

68409046024 has 16 divisors (see below), whose sum is σ = 139927594320. Its totient is φ = 31095020880.

The previous prime is 68409046003. The next prime is 68409046081. The reversal of 68409046024 is 42064090486.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388687674 + ... + 388687849.

It is an arithmetic number, because the mean of its divisors is an integer number (8745474645).

Almost surely, 268409046024 is an apocalyptic number.

It is an amenable number.

68409046024 is an abundant number, since it is smaller than the sum of its proper divisors (71518548296).

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

68409046024 is a wasteful number, since it uses less digits than its factorization.

68409046024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777375540 (or 777375536 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 68409046024 in words is "sixty-eight billion, four hundred nine million, forty-six thousand, twenty-four".

Divisors: 1 2 4 8 11 22 44 88 777375523 1554751046 3109502092 6219004184 8551130753 17102261506 34204523012 68409046024