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66052007 = 716756503
BaseRepresentation
bin1111101111110…
…1111110100111
311121021210022122
43323331332213
5113402131012
610315420155
71431301310
oct373757647
9147253278
1066052007
113431493a
121a15465b
13108b8838
148ab5607
155beae72
hex3efdfa7

66052007 has 8 divisors (see below), whose sum is σ = 75941376. Its totient is φ = 56275992.

The previous prime is 66051983. The next prime is 66052009. The reversal of 66052007 is 70025066.

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 66052007 - 28 = 66051751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66052009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27083 + ... + 29420.

It is an arithmetic number, because the mean of its divisors is an integer number (9492672).

Almost surely, 266052007 is an apocalyptic number.

66052007 is a deficient number, since it is larger than the sum of its proper divisors (9889369).

66052007 is a wasteful number, since it uses less digits than its factorization.

66052007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56677.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 66052007 is about 8127.2385839226. The cubic root of 66052007 is about 404.2301220570.

The spelling of 66052007 in words is "sixty-six million, fifty-two thousand, seven".

Divisors: 1 7 167 1169 56503 395521 9436001 66052007