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66841348 = 22717140423
BaseRepresentation
bin1111111011111…
…0101100000100
311122202220002111
43332332230010
5114102410343
610344350404
71441066510
oct376765404
9148686074
1066841348
1134803992
121a475404
1310b03bc2
148c3d140
155d04c9d
hex3fbeb04

66841348 has 24 divisors (see below), whose sum is σ = 141547392. Its totient is φ = 26961024.

The previous prime is 66841339. The next prime is 66841349. The reversal of 66841348 is 84314866.

It is a self number, because there is not a number n which added to its sum of digits gives 66841348.

It is not an unprimeable number, because it can be changed into a prime (66841349) 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, 69736 + ... + 70687.

It is an arithmetic number, because the mean of its divisors is an integer number (5897808).

Almost surely, 266841348 is an apocalyptic number.

66841348 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

66841348 is an abundant number, since it is smaller than the sum of its proper divisors (74706044).

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

66841348 is a wasteful number, since it uses less digits than its factorization.

66841348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140451 (or 140449 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 66841348 is about 8175.6558146732. The cubic root of 66841348 is about 405.8339732230.

The spelling of 66841348 in words is "sixty-six million, eight hundred forty-one thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 140423 280846 561692 982961 1965922 2387191 3931844 4774382 9548764 16710337 33420674 66841348