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68763867 = 3471732819
BaseRepresentation
bin1000001100101…
…00000011011011
311210101120021220
410012110003123
5120100420432
610453503123
71463324514
oct406240333
9153346256
1068763867
11358a7347
121b041aa3
1311327ca3
1491bda0b
15608472c
hex41940db

68763867 has 16 divisors (see below), whose sum is σ = 94210560. Its totient is φ = 44592032.

The previous prime is 68763857. The next prime is 68763887. The reversal of 68763867 is 76836786.

It is a cyclic number.

It is not a de Polignac number, because 68763867 - 212 = 68759771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68763857) 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 15 ways as a sum of consecutive naturals, for example, 22984 + ... + 25802.

It is an arithmetic number, because the mean of its divisors is an integer number (5888160).

Almost surely, 268763867 is an apocalyptic number.

68763867 is a deficient number, since it is larger than the sum of its proper divisors (25446693).

68763867 is a wasteful number, since it uses less digits than its factorization.

68763867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042.

The product of its digits is 2032128, while the sum is 51.

The square root of 68763867 is about 8292.3981452895. The cubic root of 68763867 is about 409.6881765470.

The spelling of 68763867 in words is "sixty-eight million, seven hundred sixty-three thousand, eight hundred sixty-seven".

Divisors: 1 3 47 141 173 519 2819 8131 8457 24393 132493 397479 487687 1463061 22921289 68763867