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68455527 = 3741433
BaseRepresentation
bin1000001010010…
…00110001100111
311202210220022220
410011020301213
5120011034102
610443123423
71460601540
oct405106147
9152726286
1068455527
1135706718
121ab13573
131124a83a
14913d4c7
1560231bc
hex4148c67

68455527 has 32 divisors (see below), whose sum is σ = 109401600. Its totient is φ = 37275840.

The previous prime is 68455493. The next prime is 68455529. The reversal of 68455527 is 72555486.

It is not a de Polignac number, because 68455527 - 26 = 68455463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68455529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1591968 + ... + 1592010.

It is an arithmetic number, because the mean of its divisors is an integer number (3418800).

Almost surely, 268455527 is an apocalyptic number.

68455527 is a deficient number, since it is larger than the sum of its proper divisors (40946073).

68455527 is an frugal number, since it uses more digits than its factorization.

68455527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 94 counting only the distinct ones).

The product of its digits is 336000, while the sum is 42.

The square root of 68455527 is about 8273.7855302153. The cubic root of 68455527 is about 409.0749061260.

The spelling of 68455527 in words is "sixty-eight million, four hundred fifty-five thousand, five hundred twenty-seven".

Divisors: 1 3 7 21 41 43 123 129 287 301 861 903 1763 1849 5289 5547 12341 12943 37023 38829 75809 79507 227427 238521 530663 556549 1591989 1669647 3259787 9779361 22818509 68455527