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68525555552586 = 232112111640230637
BaseRepresentation
bin11111001010010110110010…
…11001011001000101001010
322222121222102210021012202200
433211023121121121011022
532440210314210140321
6401424112225541030
720301544101434466
oct1745133131310512
9288558383235680
1068525555552586
111a91a585719730
127828865aa4776
132c30c16c5c562
1412cc9242794a6
157dc790eabd26
hex3e52d965914a

68525555552586 has 48 divisors (see below), whose sum is σ = 162737122979808. Its totient is φ = 20666906013600.

The previous prime is 68525555552513. The next prime is 68525555552683.

68525555552586 is a `hidden beast` number, since 68 + 5 + 2 + 5 + 5 + 5 + 5 + 552 + 5 + 8 + 6 = 666.

68525555552586 is nontrivially palindromic in base 10.

68525555552586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×685255555525862 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 820073541 + ... + 820157096.

It is an arithmetic number, because the mean of its divisors is an integer number (3390356728746).

Almost surely, 268525555552586 is an apocalyptic number.

68525555552586 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68525555552586 is an abundant number, since it is smaller than the sum of its proper divisors (94211567427222).

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

68525555552586 is a wasteful number, since it uses less digits than its factorization.

68525555552586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640230867 (or 1640230864 counting only the distinct ones).

The product of its digits is 3600000000, while the sum is 72.

The spelling of 68525555552586 in words is "sixty-eight trillion, five hundred twenty-five billion, five hundred fifty-five million, five hundred fifty-two thousand, five hundred eighty-six".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 211 422 633 1266 1899 2321 3798 4642 6963 13926 20889 41778 1640230637 3280461274 4920691911 9841383822 14762075733 18042537007 29524151466 36085074014 54127611021 108255222042 162382833063 324765666126 346088664407 692177328814 1038265993221 2076531986442 3114797979663 3806975308477 6229595959326 7613950616954 11420925925431 22841851850862 34262777776293 68525555552586