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68457875486 = 27112133108613
BaseRepresentation
bin111111110000011010…
…000100100000011110
320112200221120101201212
4333300122010200132
52110200204003421
651241001504422
74642310224550
oct776032044036
9215627511655
1068457875486
112703a760100
12113264a2112
1365bcac6840
143455ca94d0
151baa044e5b
hexff068481e

68457875486 has 48 divisors (see below), whose sum is σ = 138917742432. Its totient is φ = 24620207040.

The previous prime is 68457875483. The next prime is 68457875543.

68457875486 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68457875483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1532285 + ... + 1576328.

It is an arithmetic number, because the mean of its divisors is an integer number (2894119634).

Almost surely, 268457875486 is an apocalyptic number.

68457875486 is an abundant number, since it is smaller than the sum of its proper divisors (70459866946).

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

68457875486 is a wasteful number, since it uses less digits than its factorization.

68457875486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108657 (or 3108646 counting only the distinct ones).

The product of its digits is 361267200, while the sum is 68.

The spelling of 68457875486 in words is "sixty-eight billion, four hundred fifty-seven million, eight hundred seventy-five thousand, four hundred eighty-six".

Divisors: 1 2 7 11 13 14 22 26 77 91 121 143 154 182 242 286 847 1001 1573 1694 2002 3146 11011 22022 3108613 6217226 21760291 34194743 40411969 43520582 68389486 80823938 239363201 282883783 376142173 444531659 478726402 565767566 752284346 889063318 2632995211 3111721613 4889848249 5265990422 6223443226 9779696498 34228937743 68457875486