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66060023 = 167449881
BaseRepresentation
bin1111101111111…
…1111011110111
311121022012022112
43323333323313
5113402410043
610315521235
71431333551
oct373777367
9147265275
1066060023
113431a967
121a15921b
13108bc393
148ab84d1
155bed518
hex3effef7

66060023 has 8 divisors (see below), whose sum is σ = 66679200. Its totient is φ = 65443840.

The previous prime is 66059969. The next prime is 66060031. The reversal of 66060023 is 32006066.

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

It is a cyclic number.

It is not a de Polignac number, because 66060023 - 220 = 65011447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66060053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74543 + ... + 75423.

It is an arithmetic number, because the mean of its divisors is an integer number (8334900).

Almost surely, 266060023 is an apocalyptic number.

66060023 is a deficient number, since it is larger than the sum of its proper divisors (619177).

66060023 is a wasteful number, since it uses less digits than its factorization.

66060023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 66060023 is about 8127.7317253955. The cubic root of 66060023 is about 404.2464737054.

Adding to 66060023 its reverse (32006066), we get a palindrome (98066089).

The spelling of 66060023 in words is "sixty-six million, sixty thousand, twenty-three".

Divisors: 1 167 449 881 74983 147127 395569 66060023