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68417907418 = 2743113651009
BaseRepresentation
bin111111101110000001…
…100110101011011010
320112121011100210212001
4333232001212223122
52110104441014133
651233013111214
74641313421560
oct775601465332
9215534323761
1068417907418
112701a141543
121131502850a
1365b47416b3
143450863a30
151ba679c87d
hexfee066ada

68417907418 has 16 divisors (see below), whose sum is σ = 120015466560. Its totient is φ = 28640054016.

The previous prime is 68417907407. The next prime is 68417907433. The reversal of 68417907418 is 81470971486.

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, 56824903 + ... + 56826106.

It is an arithmetic number, because the mean of its divisors is an integer number (7500966660).

Almost surely, 268417907418 is an apocalyptic number.

68417907418 is a deficient number, since it is larger than the sum of its proper divisors (51597559142).

68417907418 is a wasteful number, since it uses less digits than its factorization.

68417907418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113651061.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 68417907418 in words is "sixty-eight billion, four hundred seventeen million, nine hundred seven thousand, four hundred eighteen".

Divisors: 1 2 7 14 43 86 301 602 113651009 227302018 795557063 1591114126 4886993387 9773986774 34208953709 68417907418