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66014501 = 718152103
BaseRepresentation
bin1111101111010…
…0110100100101
311121012212212112
43323310310211
5113344431001
610314530405
71431054050
oct373646445
9147185775
1066014501
1134299743
121a136a05
13108a4747
148aa5a97
155bdecbb
hex3ef4d25

66014501 has 8 divisors (see below), whose sum is σ = 75863424. Its totient is φ = 56270160.

The previous prime is 66014491. The next prime is 66014513. The reversal of 66014501 is 10541066.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-66014501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66014581) 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, 24785 + ... + 27318.

It is an arithmetic number, because the mean of its divisors is an integer number (9482928).

Almost surely, 266014501 is an apocalyptic number.

It is an amenable number.

66014501 is a deficient number, since it is larger than the sum of its proper divisors (9848923).

66014501 is a wasteful number, since it uses less digits than its factorization.

66014501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52291.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 66014501 is about 8124.9308304748. The cubic root of 66014501 is about 404.1535968755.

Adding to 66014501 its reverse (10541066), we get a palindrome (76555567).

The spelling of 66014501 in words is "sixty-six million, fourteen thousand, five hundred one".

Divisors: 1 7 181 1267 52103 364721 9430643 66014501