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68702464208 = 2471736083227
BaseRepresentation
bin111111111110111111…
…000110100011010000
320120022222210210101102
4333332333012203100
52111200312323313
651321140123532
74651340211320
oct777677064320
9216288723342
1068702464208
1127155828244
12113943965a8
13662b6931b1
14347a577280
151bc175aa58
hexffefc68d0

68702464208 has 40 divisors (see below), whose sum is σ = 161075529792. Its totient is φ = 27711917568.

The previous prime is 68702464199. The next prime is 68702464253. The reversal of 68702464208 is 80246420786.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18039710 + ... + 18043517.

Almost surely, 268702464208 is an apocalyptic number.

68702464208 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68702464208 is an abundant number, since it is smaller than the sum of its proper divisors (92373065584).

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

68702464208 is a wasteful number, since it uses less digits than its factorization.

68702464208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36083259 (or 36083253 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 47.

The spelling of 68702464208 in words is "sixty-eight billion, seven hundred two million, four hundred sixty-four thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 36083227 72166454 144332908 252582589 288665816 505165178 577331632 613414859 1010330356 1226829718 2020660712 2453659436 4041321424 4293904013 4907318872 8587808026 9814637744 17175616052 34351232104 68702464208