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66482712 = 2332923371
BaseRepresentation
bin1111110110011…
…1001000011000
311122002200010200
43331213020120
5114004421322
610332542200
71435044102
oct375471030
9148080120
1066482712
113458949a
121a321960
1310a098aa
148b88572
155c838ac
hex3f67218

66482712 has 24 divisors (see below), whose sum is σ = 180057540. Its totient is φ = 22160880.

The previous prime is 66482711. The next prime is 66482737. The reversal of 66482712 is 21728466.

66482712 is a `hidden beast` number, since 6 + 648 + 2 + 7 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66482711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 461614 + ... + 461757.

Almost surely, 266482712 is an apocalyptic number.

It is an amenable number.

66482712 is an abundant number, since it is smaller than the sum of its proper divisors (113574828).

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

66482712 is a wasteful number, since it uses less digits than its factorization.

66482712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923383 (or 923376 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 66482712 is about 8153.6931509593. The cubic root of 66482712 is about 405.1068396686.

The spelling of 66482712 in words is "sixty-six million, four hundred eighty-two thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 923371 1846742 2770113 3693484 5540226 7386968 8310339 11080452 16620678 22160904 33241356 66482712