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66363028 = 22891311423
BaseRepresentation
bin1111110100100…
…1111010010100
311121212120221221
43331021322110
5113442104103
610330220124
71434035134
oct375117224
9147776857
1066363028
1134507586
121a284644
1310997284
148b56ac4
155c5d1bd
hex3f49e94

66363028 has 24 divisors (see below), whose sum is σ = 118419840. Its totient is φ = 32535360.

The previous prime is 66363007. The next prime is 66363043. The reversal of 66363028 is 82036366.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66362984 and 66363002.

It is a congruent number.

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, 45925 + ... + 47347.

It is an arithmetic number, because the mean of its divisors is an integer number (4934160).

Almost surely, 266363028 is an apocalyptic number.

It is an amenable number.

66363028 is a deficient number, since it is larger than the sum of its proper divisors (52056812).

66363028 is a wasteful number, since it uses less digits than its factorization.

66363028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 66363028 is about 8146.3505939776. The cubic root of 66363028 is about 404.8635988358.

The spelling of 66363028 in words is "sixty-six million, three hundred sixty-three thousand, twenty-eight".

Divisors: 1 2 4 89 131 178 262 356 524 1423 2846 5692 11659 23318 46636 126647 186413 253294 372826 506588 745652 16590757 33181514 66363028