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65012712655525 = 52231971770732413
BaseRepresentation
bin11101100100000111100111…
…01001001100101010100101
322112012011011201121110022221
432302003303221030222211
532010132013414434100
6350134232231152341
716460004424455325
oct1662036351145245
9275164151543287
1065012712655525
1119795811463948
12735ba95b156b1
132a37898627b1b
14120a8bc60b285
1577b1e33b701a
hex3b20f3a4caa5

65012712655525 has 48 divisors (see below), whose sum is σ = 84555189442944. Its totient is φ = 49492003841280.

The previous prime is 65012712655523. The next prime is 65012712655529. The reversal of 65012712655525 is 52555621721056.

65012712655525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65012712655525 - 21 = 65012712655523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65012712655523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2005744219 + ... + 2005776631.

It is an arithmetic number, because the mean of its divisors is an integer number (1761566446728).

Almost surely, 265012712655525 is an apocalyptic number.

It is an amenable number.

65012712655525 is a deficient number, since it is larger than the sum of its proper divisors (19542476787419).

65012712655525 is a wasteful number, since it uses less digits than its factorization.

65012712655525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50350 (or 50345 counting only the distinct ones).

The product of its (nonzero) digits is 6300000, while the sum is 52.

The spelling of 65012712655525 in words is "sixty-five trillion, twelve billion, seven hundred twelve million, six hundred fifty-five thousand, five hundred twenty-five".

Divisors: 1 5 23 25 115 197 575 985 4531 4925 17707 22655 32413 88535 113275 162065 407261 442675 745499 810325 2036305 3488279 3727495 6385361 10181525 17441395 18637475 31926805 80230417 87206975 146863303 159634025 401152085 573936991 734316515 2005760425 2869684955 3671582575 13200550793 14348424775 66002753965 113065587227 330013769825 565327936135 2600508506221 2826639680675 13002542531105 65012712655525