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66113148 = 2235509429
BaseRepresentation
bin1111110000110…
…0111001111100
311121101220012010
43330030321330
5113411110043
610321011220
71431644463
oct374147174
9147356163
1066113148
1134356872
121a183b10
131090a60a
148acd9da
155c0e133
hex3f0ce7c

66113148 has 12 divisors (see below), whose sum is σ = 154264040. Its totient is φ = 22037712.

The previous prime is 66113147. The next prime is 66113189. The reversal of 66113148 is 84131166.

It is a tau number, because it is divible by the number of its divisors (12).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66113143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2754703 + ... + 2754726.

Almost surely, 266113148 is an apocalyptic number.

It is an amenable number.

66113148 is an abundant number, since it is smaller than the sum of its proper divisors (88150892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66113148 is a wasteful number, since it uses less digits than its factorization.

66113148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509436 (or 5509434 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 66113148 is about 8130.9992005903. Note that the first 3 decimals coincide. The cubic root of 66113148 is about 404.3548087148.

The spelling of 66113148 in words is "sixty-six million, one hundred thirteen thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 5509429 11018858 16528287 22037716 33056574 66113148