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54230221251 = 3317320875563
BaseRepresentation
bin110010100000010111…
…111000000111000011
312011222101201200021000
4302200113320013003
51342030414040001
640525113503043
73626606163213
oct624027700703
9164871650230
1054230221251
1120aa9600978
12a615711a83
13516329a31b
1428a6492243
151625e43a86
hexca05f81c3

54230221251 has 32 divisors (see below), whose sum is σ = 80858718720. Its totient is φ = 35920819872.

The previous prime is 54230221237. The next prime is 54230221271. The reversal of 54230221251 is 15212203245.

It is not a de Polignac number, because 54230221251 - 25 = 54230221219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (54230221271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9745596 + ... + 9751158.

It is an arithmetic number, because the mean of its divisors is an integer number (2526834960).

Almost surely, 254230221251 is an apocalyptic number.

54230221251 is a deficient number, since it is larger than the sum of its proper divisors (26628497469).

54230221251 is a wasteful number, since it uses less digits than its factorization.

54230221251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832 (or 7826 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 54230221251 its reverse (15212203245), we get a palindrome (69442424496).

The spelling of 54230221251 in words is "fifty-four billion, two hundred thirty million, two hundred twenty-one thousand, two hundred fifty-one".

Divisors: 1 3 9 27 173 519 1557 2087 4671 5563 6261 16689 18783 50067 56349 150201 361051 962399 1083153 2887197 3249459 8661591 9748377 11609981 25984773 34829943 104489829 313469487 2008526713 6025580139 18076740417 54230221251