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66382154 = 2131253367
BaseRepresentation
bin1111110100111…
…0100101001010
311121220120012022
43331032211022
5113443212104
610330444442
71434144656
oct375164512
9147816168
1066382154
113451a993
121a293722
13109a2ba7
148b5da66
155c63bbe
hex3f4e94a

66382154 has 8 divisors (see below), whose sum is σ = 100333728. Its totient is φ = 32937580.

The previous prime is 66382133. The next prime is 66382159. The reversal of 66382154 is 45128366.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66382159) 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, 126422 + ... + 126945.

It is an arithmetic number, because the mean of its divisors is an integer number (12541716).

Almost surely, 266382154 is an apocalyptic number.

66382154 is a deficient number, since it is larger than the sum of its proper divisors (33951574).

66382154 is a wasteful number, since it uses less digits than its factorization.

66382154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253500.

The product of its digits is 34560, while the sum is 35.

The square root of 66382154 is about 8147.5244092915. The cubic root of 66382154 is about 404.9024893529.

The spelling of 66382154 in words is "sixty-six million, three hundred eighty-two thousand, one hundred fifty-four".

Divisors: 1 2 131 262 253367 506734 33191077 66382154