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52005145451 = 721762431147
BaseRepresentation
bin110000011011101111…
…111000101101101011
311222020022212010002012
4300123233320231223
51323001304123301
635520230430135
73520510304600
oct603357705553
9158208763065
1052005145451
1120067604556
12a0b450234b
134b9a2c911c
142734b686a7
151545921ebb
hexc1bbf8b6b

52005145451 has 12 divisors (see below), whose sum is σ = 64054357848. Its totient is φ = 41953730112.

The previous prime is 52005145403. The next prime is 52005145459. The reversal of 52005145451 is 15454150025.

It is not a de Polignac number, because 52005145451 - 210 = 52005144427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52005145459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31214741 + ... + 31216406.

It is an arithmetic number, because the mean of its divisors is an integer number (5337863154).

Almost surely, 252005145451 is an apocalyptic number.

52005145451 is a deficient number, since it is larger than the sum of its proper divisors (12049212397).

52005145451 is a wasteful number, since it uses less digits than its factorization.

52005145451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62431178 (or 62431171 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 52005145451 its reverse (15454150025), we get a palindrome (67459295476).

The spelling of 52005145451 in words is "fifty-two billion, five million, one hundred forty-five thousand, four hundred fifty-one".

Divisors: 1 7 17 49 119 833 62431147 437018029 1061329499 3059126203 7429306493 52005145451