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68512862 = 2112283111
BaseRepresentation
bin1000001010101…
…10110001011110
311202220210222102
410011112301132
5120014402422
610444245102
71461230645
oct405266136
9152823872
1068512862
1135745800
121ab40792
131126a972
14915635c
156035192
hex4156c5e

68512862 has 12 divisors (see below), whose sum is σ = 112961688. Its totient is φ = 31142100.

The previous prime is 68512861. The next prime is 68512891. The reversal of 68512862 is 26821586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68512861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141314 + ... + 141797.

It is an arithmetic number, because the mean of its divisors is an integer number (9413474).

Almost surely, 268512862 is an apocalyptic number.

68512862 is a deficient number, since it is larger than the sum of its proper divisors (44448826).

68512862 is a wasteful number, since it uses less digits than its factorization.

68512862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283135 (or 283124 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 68512862 is about 8277.2496639886. The cubic root of 68512862 is about 409.1890812981.

The spelling of 68512862 in words is "sixty-eight million, five hundred twelve thousand, eight hundred sixty-two".

Divisors: 1 2 11 22 121 242 283111 566222 3114221 6228442 34256431 68512862