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68559057258 = 2399733114571
BaseRepresentation
bin111111110110011100…
…000011000101101010
320112221222221222000220
4333312130003011222
52110402104313013
651255014310510
74644646241256
oct776634030552
9215858858026
1068559057258
11270918894aa
1211354358436
136607a62203
1434654c7266
151bb3d7eb23
hexff670316a

68559057258 has 16 divisors (see below), whose sum is σ = 137120686176. Its totient is φ = 22852590480.

The previous prime is 68559057253. The next prime is 68559057269. The reversal of 68559057258 is 85275095586.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68559057251) 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, 541113 + ... + 655683.

It is an arithmetic number, because the mean of its divisors is an integer number (8570042886).

Almost surely, 268559057258 is an apocalyptic number.

68559057258 is an abundant number, since it is smaller than the sum of its proper divisors (68561628918).

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

68559057258 is a wasteful number, since it uses less digits than its factorization.

68559057258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214309.

The product of its (nonzero) digits is 30240000, while the sum is 60.

The spelling of 68559057258 in words is "sixty-eight billion, five hundred fifty-nine million, fifty-seven thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 99733 114571 199466 229142 299199 343713 598398 687426 11426509543 22853019086 34279528629 68559057258