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68529892586 = 2973181111049
BaseRepresentation
bin111111110100101100…
…110010110011101010
320112212222002020121212
4333310230302303222
52110322123030321
651252053233122
74644143322131
oct776454626352
9215788066555
1068529892586
1127077379671
12113466327a2
1366019c04cc
143461694918
151bb151d55b
hexff4b32cea

68529892586 has 16 divisors (see below), whose sum is σ = 103888163400. Its totient is φ = 33900733440.

The previous prime is 68529892579. The next prime is 68529892591.

68529892586 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 49026373561 + 19503519025 = 221419^2 + 139655^2 .

It is a Curzon number.

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, 561590 + ... + 672638.

Almost surely, 268529892586 is an apocalyptic number.

68529892586 is a deficient number, since it is larger than the sum of its proper divisors (35358270814).

68529892586 is a wasteful number, since it uses less digits than its factorization.

68529892586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114329.

The product of its digits is 149299200, while the sum is 68.

The spelling of 68529892586 in words is "sixty-eight billion, five hundred twenty-nine million, eight hundred ninety-two thousand, five hundred eighty-six".

Divisors: 1 2 97 194 3181 6362 111049 222098 308557 617114 10771753 21543506 353246869 706493738 34264946293 68529892586