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53311145017 = 1361461145829
BaseRepresentation
bin110001101001100101…
…111000010000111001
312002121100022202200111
4301221211320100321
51333140123120032
640254002504321
73565046153524
oct615145702071
9162540282614
1053311145017
112067782a339
12a3b99650a1
135047a54b30
14281a3abbbb
1515c03e9c47
hexc69978439

53311145017 has 16 divisors (see below), whose sum is σ = 58480163280. Its totient is φ = 48298233600.

The previous prime is 53311144919. The next prime is 53311145023. The reversal of 53311145017 is 71054111335.

It can be written as a sum of positive squares in 8 ways, for example, as 28499854761 + 24811290256 = 168819^2 + 157516^2 .

It is a cyclic number.

It is not a de Polignac number, because 53311145017 - 215 = 53311112249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53311145017.

It is not an unprimeable number, because it can be changed into a prime (53311145047) by changing a digit.

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, 292659 + ... + 438487.

It is an arithmetic number, because the mean of its divisors is an integer number (3655010205).

Almost surely, 253311145017 is an apocalyptic number.

It is an amenable number.

53311145017 is a deficient number, since it is larger than the sum of its proper divisors (5169018263).

53311145017 is a wasteful number, since it uses less digits than its factorization.

53311145017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146364.

The product of its (nonzero) digits is 6300, while the sum is 31.

The spelling of 53311145017 in words is "fifty-three billion, three hundred eleven million, one hundred forty-five thousand, seventeen".

Divisors: 1 13 61 461 793 5993 28121 145829 365573 1895777 8895569 67227169 115642397 873953197 4100857309 53311145017