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66112115 = 519695917
BaseRepresentation
bin1111110000110…
…0101001110011
311121101211202212
43330030221303
5113411041430
610321002335
71431641456
oct374145163
9147354685
1066112115
1134356013
121a1833ab
1310909cc4
148acd49d
155c0db95
hex3f0ca73

66112115 has 8 divisors (see below), whose sum is σ = 83510160. Its totient is φ = 50105952.

The previous prime is 66112103. The next prime is 66112121. The reversal of 66112115 is 51121166.

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-66112115 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347864 + ... + 348053.

It is an arithmetic number, because the mean of its divisors is an integer number (10438770).

Almost surely, 266112115 is an apocalyptic number.

66112115 is a deficient number, since it is larger than the sum of its proper divisors (17398045).

66112115 is a wasteful number, since it uses less digits than its factorization.

66112115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695941.

The product of its digits is 360, while the sum is 23.

The square root of 66112115 is about 8130.9356780139. The cubic root of 66112115 is about 404.3527027258.

The spelling of 66112115 in words is "sixty-six million, one hundred twelve thousand, one hundred fifteen".

Divisors: 1 5 19 95 695917 3479585 13222423 66112115