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54552213440 = 265170475667
BaseRepresentation
bin110010110011100100…
…001011011111000000
312012210211121120111122
4302303210023133000
51343210331312230
641021055131412
73640566110024
oct626344133700
9165724546448
1054552213440
112115433641a
12a6a5513b68
1351b4bc824a
1428d714c384
151644348be5
hexcb390b7c0

54552213440 has 28 divisors (see below), whose sum is σ = 129902459016. Its totient is φ = 21820885248.

The previous prime is 54552213409. The next prime is 54552213473. The reversal of 54552213440 is 4431225545.

It is a self number, because there is not a number n which added to its sum of digits gives 54552213440.

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 3 ways as a sum of consecutive naturals, for example, 85237514 + ... + 85238153.

Almost surely, 254552213440 is an apocalyptic number.

It is an amenable number.

54552213440 is an abundant number, since it is smaller than the sum of its proper divisors (75350245576).

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

54552213440 is a wasteful number, since it uses less digits than its factorization.

54552213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170475684 (or 170475674 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 54552213440 its reverse (4431225545), we get a palindrome (58983438985).

The spelling of 54552213440 in words is "fifty-four billion, five hundred fifty-two million, two hundred thirteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 170475667 340951334 681902668 852378335 1363805336 1704756670 2727610672 3409513340 5455221344 6819026680 10910442688 13638053360 27276106720 54552213440