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55548042880 = 275117890347
BaseRepresentation
bin110011101110111010…
…111101111010000000
312022101020102221200111
4303232322331322000
51402230244333010
641303551201104
74004350400611
oct635672757200
9168336387614
1055548042880
1121615470860
12a922b16194
135313305035
14298d4d1c08
1516a19a458a
hexceeebde80

55548042880 has 64 divisors (see below), whose sum is σ = 144866789280. Its totient is φ = 20199285760.

The previous prime is 55548042863. The next prime is 55548042899. The reversal of 55548042880 is 8824084555.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3938134 + ... + 3952213.

Almost surely, 255548042880 is an apocalyptic number.

It is an amenable number.

55548042880 is an abundant number, since it is smaller than the sum of its proper divisors (89318746400).

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

55548042880 is a wasteful number, since it uses less digits than its factorization.

55548042880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890377 (or 7890365 counting only the distinct ones).

The product of its (nonzero) digits is 2048000, while the sum is 49.

The spelling of 55548042880 in words is "fifty-five billion, five hundred forty-eight million, forty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1760 3520 7040 7890347 15780694 31561388 39451735 63122776 78903470 86793817 126245552 157806940 173587634 252491104 315613880 347175268 433969085 504982208 631227760 694350536 867938170 1009964416 1262455520 1388701072 1735876340 2524911040 2777402144 3471752680 5049822080 5554804288 6943505360 11109608576 13887010720 27774021440 55548042880