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66830348 = 22131285199
BaseRepresentation
bin1111111011110…
…0000000001100
311122202100000002
43332330000030
5114102032343
610344223432
71441022444
oct376740014
9148670002
1066830348
11347a66a2
121a46ab78
1310acbbb0
148c39124
155d018b8
hex3fbc00c

66830348 has 12 divisors (see below), whose sum is σ = 125949600. Its totient is φ = 30844752.

The previous prime is 66830339. The next prime is 66830377. The reversal of 66830348 is 84303866.

66830348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×668303482 = 8932590827602208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642548 + ... + 642651.

It is an arithmetic number, because the mean of its divisors is an integer number (10495800).

Almost surely, 266830348 is an apocalyptic number.

It is an amenable number.

66830348 is a deficient number, since it is larger than the sum of its proper divisors (59119252).

66830348 is a wasteful number, since it uses less digits than its factorization.

66830348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285216 (or 1285214 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 66830348 is about 8174.9830580864. The cubic root of 66830348 is about 405.8117094658.

The spelling of 66830348 in words is "sixty-six million, eight hundred thirty thousand, three hundred forty-eight".

Divisors: 1 2 4 13 26 52 1285199 2570398 5140796 16707587 33415174 66830348