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54505191069 = 3274373367751
BaseRepresentation
bin110010110000110000…
…110011011010011101
312012200120010120221100
4302300300303122131
51343111312103234
641012255223313
73636455323410
oct626060633235
9165616116840
1054505191069
112112a83985a
12a691817b39
1351a8243264
1428d0bcbb77
15164015b399
hexcb0c3369d

54505191069 has 96 divisors (see below), whose sum is σ = 93709451264. Its totient is φ = 29883168000.

The previous prime is 54505191049. The next prime is 54505191077. The reversal of 54505191069 is 96019150545.

It is a happy number.

54505191069 is a `hidden beast` number, since 5 + 450 + 5 + 191 + 0 + 6 + 9 = 666.

54505191069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54505191069 - 213 = 54505182877 is a prime.

It is a super-2 number, since 2×545051910692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54505191029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72576444 + ... + 72577194.

Almost surely, 254505191069 is an apocalyptic number.

It is an amenable number.

54505191069 is a deficient number, since it is larger than the sum of its proper divisors (39204260195).

54505191069 is a wasteful number, since it uses less digits than its factorization.

54505191069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 54505191069 in words is "fifty-four billion, five hundred five million, one hundred ninety-one thousand, sixty-nine".

Divisors: 1 3 7 9 21 43 63 73 129 219 301 367 387 511 657 751 903 1101 1533 2253 2569 2709 3139 3303 4599 5257 6759 7707 9417 15771 15781 21973 23121 26791 28251 32293 47313 47343 54823 65919 80373 96879 110467 142029 164469 187537 197757 226051 241119 275617 290637 331401 383761 493407 562611 678153 826851 994203 1151283 1152013 1687833 1929319 2034459 2357389 2480553 3453849 3456039 5787957 7072167 8064091 10368117 11851531 16501723 17363871 20120041 21216501 24192273 35554593 49505169 60360123 72576819 82960717 106663779 140840287 148515507 181080369 248882151 422520861 746646453 865161763 1267562583 2595485289 6056132341 7786455867 18168397023 54505191069