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55212341184 = 263271113313089
BaseRepresentation
bin110011011010111010…
…010111011111000000
312021111211202112112100
4303122322113133000
51401033324404214
641210400030400
73663133104510
oct633272273700
9167454675470
1055212341184
1121462a22140
12a84a602400
13528b8b6c90
14295aaa7840
151682292309
hexcdae977c0

55212341184 has 672 divisors, whose sum is σ = 219409182720. Its totient is φ = 12806553600.

The previous prime is 55212341183. The next prime is 55212341189. The reversal of 55212341184 is 48114321255.

55212341184 is a `hidden beast` number, since 552 + 1 + 23 + 4 + 1 + 1 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55212341183) 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, 17872312 + ... + 17875400.

It is an arithmetic number, because the mean of its divisors is an integer number (326501760).

Almost surely, 255212341184 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 55212341184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109704591360).

55212341184 is an abundant number, since it is smaller than the sum of its proper divisors (164196841536).

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

55212341184 is a wasteful number, since it uses less digits than its factorization.

55212341184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169 (or 3156 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The spelling of 55212341184 in words is "fifty-five billion, two hundred twelve million, three hundred forty-one thousand, one hundred eighty-four".