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54678543206 = 2789317138433
BaseRepresentation
bin110010111011000110…
…000101101101100110
312020010122022210100212
4302323012011231212
51343440201340311
641041410535422
73643661643260
oct627306055546
9166118283325
1054678543206
1121209680891
12a71b897572
13520512a2a1
142909c34b30
15165049ec8b
hexcbb185b66

54678543206 has 32 divisors (see below), whose sum is σ = 95087545920. Its totient is φ = 23097102336.

The previous prime is 54678543193. The next prime is 54678543211. The reversal of 54678543206 is 60234587645.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325766 + ... + 464198.

It is an arithmetic number, because the mean of its divisors is an integer number (2971485810).

Almost surely, 254678543206 is an apocalyptic number.

54678543206 is a deficient number, since it is larger than the sum of its proper divisors (40409002714).

54678543206 is a wasteful number, since it uses less digits than its factorization.

54678543206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138848.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 54678543206 in words is "fifty-four billion, six hundred seventy-eight million, five hundred forty-three thousand, two hundred six".

Divisors: 1 2 7 14 89 178 317 623 634 1246 2219 4438 28213 56426 138433 197491 276866 394982 969031 1938062 12320537 24641074 43883261 86243759 87766522 172487518 307182827 614365654 3905610229 7811220458 27339271603 54678543206