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764808468 = 22363734039
BaseRepresentation
bin101101100101100…
…000110100010100
31222022010021222120
4231211200310110
53031242332333
6203520255540
724644523204
oct5545406424
91868107876
10764808468
11362794a16
121941715b0
13c25b0bb8
1473808404
1547224db3
hex2d960d14

764808468 has 12 divisors (see below), whose sum is σ = 1784553120. Its totient is φ = 254936152.

The previous prime is 764808437. The next prime is 764808479. The reversal of 764808468 is 864808467.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 764808468.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31867008 + ... + 31867031.

It is an arithmetic number, because the mean of its divisors is an integer number (148712760).

Almost surely, 2764808468 is an apocalyptic number.

It is an amenable number.

764808468 is an abundant number, since it is smaller than the sum of its proper divisors (1019744652).

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

764808468 is a wasteful number, since it uses less digits than its factorization.

764808468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63734046 (or 63734044 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The square root of 764808468 is about 27655.1707280935. The cubic root of 764808468 is about 914.5010938412.

Subtracting 764808468 from its reverse (864808467), we obtain a palindrome (99999999).

It can be divided in two parts, 76480 and 8468, that added together give a palindrome (84948).

The spelling of 764808468 in words is "seven hundred sixty-four million, eight hundred eight thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 63734039 127468078 191202117 254936156 382404234 764808468