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55045243330 = 257111721947277
BaseRepresentation
bin110011010000111100…
…111100000111000010
312021002012100002100221
4303100330330013002
51400213040241310
641142030333254
73656033563660
oct632074740702
9167065302327
1055045243330
1121387672040
12a80265a22a
1352630ac8cc
14294280bc30
151672786ada
hexcd0f3c1c2

55045243330 has 384 divisors, whose sum is σ = 141578772480. Its totient is φ = 14918307840.

The previous prime is 55045243247. The next prime is 55045243333. The reversal of 55045243330 is 3334254055.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (55045243333) by changing a digit.

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 191 ways as a sum of consecutive naturals, for example, 198719152 + ... + 198719428.

It is an arithmetic number, because the mean of its divisors is an integer number (368694720).

Almost surely, 255045243330 is an apocalyptic number.

55045243330 is an abundant number, since it is smaller than the sum of its proper divisors (86533529150).

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

55045243330 is a wasteful number, since it uses less digits than its factorization.

55045243330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 55045243330 its reverse (3334254055), we get a palindrome (58379497385).

The spelling of 55045243330 in words is "fifty-five billion, forty-five million, two hundred forty-three thousand, three hundred thirty".