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52293995665 = 573891609789
BaseRepresentation
bin110000101100111101…
…110000110010010001
311222222110101020002021
4300230331300302101
51324044230330130
640005025451441
73530615425522
oct605475606221
9158873336067
1052293995665
11201a5662a3a
12a1751a0b81
134c150c1c02
142761278849
151560e7c37a
hexc2cf70c91

52293995665 has 16 divisors (see below), whose sum is σ = 64327208400. Its totient is φ = 40798467072.

The previous prime is 52293995603. The next prime is 52293995711. The reversal of 52293995665 is 56659939225.

It can be written as a sum of positive squares in 8 ways, for example, as 184063489 + 52109932176 = 13567^2 + 228276^2 .

It is a cyclic number.

It is not a de Polignac number, because 52293995665 - 217 = 52293864593 is a prime.

It is a super-2 number, since 2×522939956652 (a number of 22 digits) contains 22 as substring.

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, 772410 + ... + 837379.

It is an arithmetic number, because the mean of its divisors is an integer number (4020450525).

Almost surely, 252293995665 is an apocalyptic number.

It is an amenable number.

52293995665 is a deficient number, since it is larger than the sum of its proper divisors (12033212735).

52293995665 is a wasteful number, since it uses less digits than its factorization.

52293995665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609956.

The product of its digits is 39366000, while the sum is 61.

The spelling of 52293995665 in words is "fifty-two billion, two hundred ninety-three million, nine hundred ninety-five thousand, six hundred sixty-five".

Divisors: 1 5 73 89 365 445 6497 32485 1609789 8048945 117514597 143271221 587572985 716356105 10458799133 52293995665