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1428068766 = 231912526919
BaseRepresentation
bin101010100011110…
…1001100110011110
310200112011102001210
41111013221212132
510411041200031
6353412245250
750250245535
oct12507514636
93615142053
101428068766
11673120223
1233a310826
13199b28707
14d793b31c
158558b746
hex551e999e

1428068766 has 16 divisors (see below), whose sum is σ = 3006460800. Its totient is φ = 450969048.

The previous prime is 1428068749. The next prime is 1428068783. The reversal of 1428068766 is 6678608241.

It is an interprime number because it is at equal distance from previous prime (1428068749) and next prime (1428068783).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6263346 + ... + 6263573.

It is an arithmetic number, because the mean of its divisors is an integer number (187903800).

Almost surely, 21428068766 is an apocalyptic number.

1428068766 is an abundant number, since it is smaller than the sum of its proper divisors (1578392034).

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

1428068766 is a wasteful number, since it uses less digits than its factorization.

1428068766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12526943.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 1428068766 is about 37789.7971150944. The cubic root of 1428068766 is about 1126.1157696611.

The spelling of 1428068766 in words is "one billion, four hundred twenty-eight million, sixty-eight thousand, seven hundred sixty-six".

Divisors: 1 2 3 6 19 38 57 114 12526919 25053838 37580757 75161514 238011461 476022922 714034383 1428068766