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6765382813 = 72331417127
BaseRepresentation
bin1100100110011111…
…11000110010011101
3122110111021001111211
412103033320302131
5102323414222223
63035153344421
7326436543100
oct62317706235
918414231454
106765382813
112961978272
121389868111
1383a81b1c7
14482726737
15298e22d0d
hex1933f8c9d

6765382813 has 12 divisors (see below), whose sum is σ = 7893730272. Its totient is φ = 5781366360.

The previous prime is 6765382787. The next prime is 6765382823. The reversal of 6765382813 is 3182835676.

It is a de Polignac number, because none of the positive numbers 2k-6765382813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6765382823) 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 11 ways as a sum of consecutive naturals, for example, 192345 + ... + 224782.

It is an arithmetic number, because the mean of its divisors is an integer number (657810856).

Almost surely, 26765382813 is an apocalyptic number.

It is an amenable number.

6765382813 is a deficient number, since it is larger than the sum of its proper divisors (1128347459).

6765382813 is a wasteful number, since it uses less digits than its factorization.

6765382813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417472 (or 417465 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 6765382813 is about 82251.9471684409. The cubic root of 6765382813 is about 1891.3161248969.

The spelling of 6765382813 in words is "six billion, seven hundred sixty-five million, three hundred eighty-two thousand, eight hundred thirteen".

Divisors: 1 7 49 331 2317 16219 417127 2919889 20439223 138069037 966483259 6765382813