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6768493930 = 2511391115733
BaseRepresentation
bin1100100110110111…
…10000010101101010
3122110201010010011101
412103123300111222
5102330213301210
63035344152014
7326505151312
oct62333602552
918421103141
106768493930
112963702740
12138a90860a
1383b36a2c3
14482cd6442
15299339a3a
hex1936f056a

6768493930 has 32 divisors (see below), whose sum is σ = 13295104128. Its totient is φ = 2460484800.

The previous prime is 6768493873. The next prime is 6768493943. The reversal of 6768493930 is 393948676.

It is a Harshad number since it is a multiple of its sum of digits (55).

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 15 ways as a sum of consecutive naturals, for example, 422344 + ... + 438076.

It is an arithmetic number, because the mean of its divisors is an integer number (415472004).

Almost surely, 26768493930 is an apocalyptic number.

6768493930 is a deficient number, since it is larger than the sum of its proper divisors (6526610198).

6768493930 is a wasteful number, since it uses less digits than its factorization.

6768493930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19662.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The square root of 6768493930 is about 82270.8571123457. The cubic root of 6768493930 is about 1891.6059929004.

The spelling of 6768493930 in words is "six billion, seven hundred sixty-eight million, four hundred ninety-three thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 3911 7822 15733 19555 31466 39110 43021 78665 86042 157330 173063 215105 346126 430210 865315 1730630 61531763 123063526 307658815 615317630 676849393 1353698786 3384246965 6768493930