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769865668 = 2211132946411
BaseRepresentation
bin101101111000110…
…011011111000100
31222122122020011021
4231320303133010
53034041200133
6204220520524
725035515215
oct5570633704
91878566137
10769865668
11365629520
121959b0144
13c3661a20
147436340c
15478c352d
hex2de337c4

769865668 has 48 divisors (see below), whose sum is σ = 1637415360. Its totient is φ = 311875200.

The previous prime is 769865653. The next prime is 769865669. The reversal of 769865668 is 866568967.

It is not an unprimeable number, because it can be changed into a prime (769865669) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6618 + ... + 39793.

It is an arithmetic number, because the mean of its divisors is an integer number (34112820).

Almost surely, 2769865668 is an apocalyptic number.

It is an amenable number.

769865668 is an abundant number, since it is smaller than the sum of its proper divisors (867549692).

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

769865668 is a wasteful number, since it uses less digits than its factorization.

769865668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46468 (or 46466 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The square root of 769865668 is about 27746.4532508211. The cubic root of 769865668 is about 916.5123418586.

The spelling of 769865668 in words is "seven hundred sixty-nine million, eight hundred sixty-five thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 13 22 26 29 44 52 58 116 143 286 319 377 572 638 754 1276 1508 4147 8294 16588 46411 92822 185644 510521 603343 1021042 1206686 1345919 2042084 2413372 2691838 5383676 6636773 13273546 14805109 17496947 26547092 29610218 34993894 59220436 69987788 192466417 384932834 769865668