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248408221255 = 583990765287
BaseRepresentation
bin1110011101011001001…
…0001010011001000111
3212202011222220010011221
43213112102022121013
513032220001040010
6310041150141211
723642534020255
oct3472622123107
9782158803157
10248408221255
1196392a68327
12401874b1807
131a56a37418c
14c04725b5d5
1566dd1e0dda
hex39d648a647

248408221255 has 16 divisors (see below), whose sum is σ = 298778780160. Its totient is φ = 198267836832.

The previous prime is 248408221213. The next prime is 248408221267. The reversal of 248408221255 is 552122804842.

248408221255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-248408221255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3772222 + ... + 3837508.

It is an arithmetic number, because the mean of its divisors is an integer number (18673673760).

Almost surely, 2248408221255 is an apocalyptic number.

248408221255 is a deficient number, since it is larger than the sum of its proper divisors (50370558905).

248408221255 is an equidigital number, since it uses as much as digits as its factorization.

248408221255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67038.

The product of its (nonzero) digits is 409600, while the sum is 43.

The spelling of 248408221255 in words is "two hundred forty-eight billion, four hundred eight million, two hundred twenty-one thousand, two hundred fifty-five".

Divisors: 1 5 839 907 4195 4535 65287 326435 760973 3804865 54775793 59215309 273878965 296076545 49681644251 248408221255