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45316287 = 331678381
BaseRepresentation
bin1010110011011…
…1100010111111
310011021022021000
42230313202333
543100110122
64255141343
71060116312
oct254674277
9104238230
1045316287
1123641885
1213214853
139508593
146038979
153ea20ac
hex2b378bf

45316287 has 8 divisors (see below), whose sum is σ = 67135280. Its totient is φ = 30210840.

The previous prime is 45316253. The next prime is 45316303. The reversal of 45316287 is 78261354.

It is a de Polignac number, because none of the positive numbers 2k-45316287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45316487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839164 + ... + 839217.

It is an arithmetic number, because the mean of its divisors is an integer number (8391910).

Almost surely, 245316287 is an apocalyptic number.

45316287 is a deficient number, since it is larger than the sum of its proper divisors (21818993).

45316287 is a wasteful number, since it uses less digits than its factorization.

45316287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678390 (or 1678384 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 45316287 is about 6731.7372943394. The cubic root of 45316287 is about 356.5207183258.

The spelling of 45316287 in words is "forty-five million, three hundred sixteen thousand, two hundred eighty-seven".

Divisors: 1 3 9 27 1678381 5035143 15105429 45316287