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66083797 = 1313936571
BaseRepresentation
bin1111110000010…
…1101111010101
311121100101221001
43330011233111
5113404140142
610320223301
71431463063
oct374055725
9147311831
1066083797
113433680a
121a16ab31
13108ca150
148ac3033
155c055b7
hex3f05bd5

66083797 has 8 divisors (see below), whose sum is σ = 71681120. Its totient is φ = 60559920.

The previous prime is 66083783. The next prime is 66083803. The reversal of 66083797 is 79738066.

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 66083797 - 219 = 65559509 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 (66083497) 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, 16479 + ... + 20092.

It is an arithmetic number, because the mean of its divisors is an integer number (8960140).

Almost surely, 266083797 is an apocalyptic number.

It is an amenable number.

66083797 is a deficient number, since it is larger than the sum of its proper divisors (5597323).

66083797 is a wasteful number, since it uses less digits than its factorization.

66083797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36723.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 66083797 is about 8129.1941175002. The cubic root of 66083797 is about 404.2949619466.

The spelling of 66083797 in words is "sixty-six million, eighty-three thousand, seven hundred ninety-seven".

Divisors: 1 13 139 1807 36571 475423 5083369 66083797