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54519216668 = 2278563227387
BaseRepresentation
bin110010110001100110…
…010011101000011100
312012201112112011102222
4302301212103220130
51343123404413133
641013520004512
73640015460360
oct626146235034
9165645464388
1054519216668
1121137749464
12a696460738
1351ab114227
1428d29dd2a0
1516414cbe98
hexcb1993a1c

54519216668 has 24 divisors (see below), whose sum is σ = 109051646592. Its totient is φ = 23362547184.

The previous prime is 54519216599. The next prime is 54519216673. The reversal of 54519216668 is 86661291545.

It is a super-3 number, since 3×545192166683 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 126071 + ... + 353457.

It is an arithmetic number, because the mean of its divisors is an integer number (4543818608).

Almost surely, 254519216668 is an apocalyptic number.

It is an amenable number.

54519216668 is an abundant number, since it is smaller than the sum of its proper divisors (54532429924).

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

54519216668 is a wasteful number, since it uses less digits than its factorization.

54519216668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235961 (or 235959 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 53.

The spelling of 54519216668 in words is "fifty-four billion, five hundred nineteen million, two hundred sixteen thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 8563 17126 34252 59941 119882 227387 239764 454774 909548 1591709 3183418 6366836 1947114881 3894229762 7788459524 13629804167 27259608334 54519216668