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8075768047945 = 513277593756373
BaseRepresentation
bin111010110000100100101…
…0010010010100101001001
31001121000222011100001000021
41311201021102102211021
52024303133110013240
625101542344140441
71462312026541213
oct165411122224511
931530864301007
108075768047945
112633a0658a084
12aa517a467721
13467707043920
141dcc253655b3
15e0108b4254a
hex75849492949

8075768047945 has 32 divisors (see below), whose sum is σ = 10491730314912. Its totient is φ = 5932086423552.

The previous prime is 8075768047927. The next prime is 8075768048009. The reversal of 8075768047945 is 5497408675708.

It can be written as a sum of positive squares in 16 ways, for example, as 5693363449929 + 2382404598016 = 2386077^2 + 1543504^2 .

It is a cyclic number.

It is not a de Polignac number, because 8075768047945 - 211 = 8075768045897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10298779 + ... + 11055151.

It is an arithmetic number, because the mean of its divisors is an integer number (327866572341).

Almost surely, 28075768047945 is an apocalyptic number.

It is an amenable number.

8075768047945 is a deficient number, since it is larger than the sum of its proper divisors (2415962266967).

8075768047945 is a wasteful number, since it uses less digits than its factorization.

8075768047945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757261.

The product of its (nonzero) digits is 474163200, while the sum is 70.

The spelling of 8075768047945 in words is "eight trillion, seventy-five billion, seven hundred sixty-eight million, forty-seven thousand, nine hundred forty-five".

Divisors: 1 5 13 65 277 593 1385 2965 3601 7709 18005 38545 164261 756373 821305 2135393 3781865 9832849 10676965 49164245 209515321 448529189 1047576605 2242645945 2723699173 5830879457 13618495865 29154397285 124242585353 621212926765 1615153609589 8075768047945