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53530043769 = 325947782641
BaseRepresentation
bin110001110110101000…
…111010010101111001
312010011121012222022200
4301312220322111321
51334112142400034
640331422340413
73603344602356
oct616650722571
9163147188280
1053530043769
112077a3501a4
12a45b12a709
1350811c8217
14283b4ad62d
1515d4738a99
hexc76a3a579

53530043769 has 6 divisors (see below), whose sum is σ = 77321174346. Its totient is φ = 35686695840.

The previous prime is 53530043753. The next prime is 53530043779. The reversal of 53530043769 is 96734003535.

53530043769 is a `hidden beast` number, since 5 + 3 + 530 + 0 + 43 + 76 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50529195369 + 3000848400 = 224787^2 + 54780^2 .

It is not a de Polignac number, because 53530043769 - 24 = 53530043753 is a prime.

It is a super-2 number, since 2×535300437692 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53530043779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2973891312 + ... + 2973891329.

It is an arithmetic number, because the mean of its divisors is an integer number (12886862391).

Almost surely, 253530043769 is an apocalyptic number.

It is an amenable number.

53530043769 is a deficient number, since it is larger than the sum of its proper divisors (23791130577).

53530043769 is a wasteful number, since it uses less digits than its factorization.

53530043769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5947782647 (or 5947782644 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 45.

The spelling of 53530043769 in words is "fifty-three billion, five hundred thirty million, forty-three thousand, seven hundred sixty-nine".

Divisors: 1 3 9 5947782641 17843347923 53530043769