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768081252 = 22364006771
BaseRepresentation
bin101101110001111…
…111110101100100
31222112021120101210
4231301333311210
53033112100002
6204114351420
725014403641
oct5561776544
91875246353
10768081252
1136461a8a4
1219528b570
13c3188763
147401adc8
154766e96c
hex2dc7fd64

768081252 has 12 divisors (see below), whose sum is σ = 1792189616. Its totient is φ = 256027080.

The previous prime is 768081229. The next prime is 768081257. The reversal of 768081252 is 252180867.

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 768081252.

It is not an unprimeable number, because it can be changed into a prime (768081257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32003374 + ... + 32003397.

Almost surely, 2768081252 is an apocalyptic number.

It is an amenable number.

768081252 is an abundant number, since it is smaller than the sum of its proper divisors (1024108364).

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

768081252 is a wasteful number, since it uses less digits than its factorization.

768081252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64006778 (or 64006776 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 768081252 is about 27714.2788468327. The cubic root of 768081252 is about 915.8036881544.

The spelling of 768081252 in words is "seven hundred sixty-eight million, eighty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 64006771 128013542 192020313 256027084 384040626 768081252