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5218888555 = 51923977283
BaseRepresentation
bin1001101110001000…
…11110101101101011
3111110201021000012201
410313010132231223
541142013413210
62221510521031
7243220551346
oct46704365553
914421230181
105218888555
112238a21241
121017966177
136522ca44a
1437719d45d
1520829253a
hex13711eb6b

5218888555 has 24 divisors (see below), whose sum is σ = 6627187152. Its totient is φ = 3944863296.

The previous prime is 5218888547. The next prime is 5218888561. The reversal of 5218888555 is 5558888125.

It is not a de Polignac number, because 5218888555 - 23 = 5218888547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5218888496 and 5218888505.

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 23 ways as a sum of consecutive naturals, for example, 712944 + ... + 720226.

It is an arithmetic number, because the mean of its divisors is an integer number (276132798).

Almost surely, 25218888555 is an apocalyptic number.

5218888555 is a deficient number, since it is larger than the sum of its proper divisors (1408298597).

5218888555 is a wasteful number, since it uses less digits than its factorization.

5218888555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723 (or 7704 counting only the distinct ones).

The product of its digits is 5120000, while the sum is 55.

The square root of 5218888555 is about 72241.8753563333. The cubic root of 5218888555 is about 1734.5733688450.

The spelling of 5218888555 in words is "five billion, two hundred eighteen million, eight hundred eighty-eight thousand, five hundred fifty-five".

Divisors: 1 5 19 95 361 397 1805 1985 7283 7543 36415 37715 138377 143317 691885 716585 2629163 2891351 13145815 14456755 54935669 274678345 1043777711 5218888555