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66452848 = 2471153939
BaseRepresentation
bin1111110101111…
…1110101110000
311122001011011121
43331133311300
5114002442343
610332152024
71434561040
oct375376560
9148034147
1066452848
1134569010
121a308614
13109c9117
148b7b720
155c79aed
hex3f5fd70

66452848 has 40 divisors (see below), whose sum is σ = 160525440. Its totient is φ = 25890240.

The previous prime is 66452843. The next prime is 66452863. The reversal of 66452848 is 84825466.

It is a super-2 number, since 2×664528482 = 8831962014622208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66452843) 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, 25738 + ... + 28201.

It is an arithmetic number, because the mean of its divisors is an integer number (4013136).

Almost surely, 266452848 is an apocalyptic number.

It is an amenable number.

66452848 is an abundant number, since it is smaller than the sum of its proper divisors (94072592).

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

66452848 is a wasteful number, since it uses less digits than its factorization.

66452848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53965 (or 53959 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 66452848 is about 8151.8616278737. The cubic root of 66452848 is about 405.0461726558.

The spelling of 66452848 in words is "sixty-six million, four hundred fifty-two thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 44 56 77 88 112 154 176 308 616 1232 53939 107878 215756 377573 431512 593329 755146 863024 1186658 1510292 2373316 3020584 4153303 4746632 6041168 8306606 9493264 16613212 33226424 66452848