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66055934 = 274718281
BaseRepresentation
bin1111101111111…
…0111011111110
311121021222201002
43323332323332
5113402242214
610315450302
71431315620
oct373767376
9147258632
1066055934
113431788a
121a156992
13108ba569
148ab6c10
155bec1de
hex3efeefe

66055934 has 8 divisors (see below), whose sum is σ = 113238768. Its totient is φ = 28309680.

The previous prime is 66055907. The next prime is 66055937. The reversal of 66055934 is 43955066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×660559342 = 8726772833224712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66055937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2359127 + ... + 2359154.

It is an arithmetic number, because the mean of its divisors is an integer number (14154846).

Almost surely, 266055934 is an apocalyptic number.

66055934 is a deficient number, since it is larger than the sum of its proper divisors (47182834).

66055934 is a wasteful number, since it uses less digits than its factorization.

66055934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718290.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 66055934 is about 8127.4801753065. The cubic root of 66055934 is about 404.2381328165.

The spelling of 66055934 in words is "sixty-six million, fifty-five thousand, nine hundred thirty-four".

Divisors: 1 2 7 14 4718281 9436562 33027967 66055934