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66053476 = 22531731801
BaseRepresentation
bin1111101111111…
…0010101100100
311121021212100001
43323332111210
5113402202401
610315431044
71431305506
oct373762544
9147255301
1066053476
1134315a55
121a155484
13108b93c8
148ab5d76
155beb601
hex3efe564

66053476 has 24 divisors (see below), whose sum is σ = 118521144. Its totient is φ = 32198400.

The previous prime is 66053453. The next prime is 66053479. The reversal of 66053476 is 67435066.

It can be written as a sum of positive squares in 4 ways, for example, as 17388900 + 48664576 = 4170^2 + 6976^2 .

It is not an unprimeable number, because it can be changed into a prime (66053479) 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 7 ways as a sum of consecutive naturals, for example, 35776 + ... + 37576.

It is an arithmetic number, because the mean of its divisors is an integer number (4938381).

Almost surely, 266053476 is an apocalyptic number.

It is an amenable number.

66053476 is a deficient number, since it is larger than the sum of its proper divisors (52467668).

66053476 is a wasteful number, since it uses less digits than its factorization.

66053476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 66053476 is about 8127.3289585201. The cubic root of 66053476 is about 404.2331187342.

The spelling of 66053476 in words is "sixty-six million, fifty-three thousand, four hundred seventy-six".

Divisors: 1 2 4 53 106 173 212 346 692 1801 3602 7204 9169 18338 36676 95453 190906 311573 381812 623146 1246292 16513369 33026738 66053476