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68101266558 = 23131098010029
BaseRepresentation
bin111111011011001001…
…101101110001111110
320111210002112210020210
4333123021231301332
52103432411012213
651141342253250
74630420133433
oct773311556176
9214702483223
1068101266558
1126977431586
1211246b87226
136563c68440
14342079bb8a
151b88aa30c3
hexfdb26dc7e

68101266558 has 32 divisors (see below), whose sum is σ = 148025354400. Its totient is φ = 20761992576.

The previous prime is 68101266547. The next prime is 68101266587. The reversal of 68101266558 is 85566210186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3996513 + ... + 4013516.

It is an arithmetic number, because the mean of its divisors is an integer number (4625792325).

Almost surely, 268101266558 is an apocalyptic number.

68101266558 is an abundant number, since it is smaller than the sum of its proper divisors (79924087842).

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

68101266558 is a wasteful number, since it uses less digits than its factorization.

68101266558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8010156.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 68101266558 in words is "sixty-eight billion, one hundred one million, two hundred sixty-six thousand, five hundred fifty-eight".

Divisors: 1 2 3 6 13 26 39 78 109 218 327 654 1417 2834 4251 8502 8010029 16020058 24030087 48060174 104130377 208260754 312391131 624782262 873093161 1746186322 2619279483 5238558966 11350211093 22700422186 34050633279 68101266558