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54690073788 = 223717367310427
BaseRepresentation
bin110010111011110010…
…000100110010111100
312020011110000121100110
4302323302010302330
51344001124330123
641042502030020
73644161646160
oct627362046274
9166143017313
1054690073788
1121215136999
12a723718310
13520763670c
14290b596ca0
1516514cb493
hexcbbc84cbc

54690073788 has 96 divisors (see below), whose sum is σ = 154475887104. Its totient is φ = 14701160448.

The previous prime is 54690073787. The next prime is 54690073817. The reversal of 54690073788 is 88737009645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54690073787) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5239831 + ... + 5250257.

It is an arithmetic number, because the mean of its divisors is an integer number (1609123824).

Almost surely, 254690073788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54690073788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77237943552).

54690073788 is an abundant number, since it is smaller than the sum of its proper divisors (99785813316).

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

54690073788 is a wasteful number, since it uses less digits than its factorization.

54690073788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14131 (or 14129 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 54690073788 in words is "fifty-four billion, six hundred ninety million, seventy-three thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 42 51 68 84 102 119 204 238 357 476 714 1428 3673 7346 10427 11019 14692 20854 22038 25711 31281 41708 44076 51422 62441 62562 72989 77133 102844 124882 125124 145978 154266 177259 187323 218967 249764 291956 308532 354518 374646 437087 437934 531777 709036 749292 874174 875868 1063554 1240813 1311261 1748348 2127108 2481626 2622522 3722439 4963252 5245044 7444878 14889756 38298371 76596742 114895113 153193484 229790226 268088597 459580452 536177194 651072307 804265791 1072354388 1302144614 1608531582 1953216921 2604289228 3217063164 3906433842 4557506149 7812867684 9115012298 13672518447 18230024596 27345036894 54690073788