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66067514 = 261541537
BaseRepresentation
bin1111110000000…
…1110000111010
311121022120120222
43330001300322
5113403130024
610320020042
71431364442
oct374016072
9147276528
1066067514
1134325557
121a161622
13108c2906
148abb122
155c0085e
hex3f01c3a

66067514 has 8 divisors (see below), whose sum is σ = 100726068. Its totient is φ = 32492160.

The previous prime is 66067513. The next prime is 66067517. The reversal of 66067514 is 41576066.

66067514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 62331025 + 3736489 = 7895^2 + 1933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×660675142 = 8729832812280392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66067513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270647 + ... + 270890.

Almost surely, 266067514 is an apocalyptic number.

66067514 is a deficient number, since it is larger than the sum of its proper divisors (34658554).

66067514 is a wasteful number, since it uses less digits than its factorization.

66067514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541600.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 66067514 is about 8128.1925420108. The cubic root of 66067514 is about 404.2617532231.

The spelling of 66067514 in words is "sixty-six million, sixty-seven thousand, five hundred fourteen".

Divisors: 1 2 61 122 541537 1083074 33033757 66067514