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40076447 = 71564457
BaseRepresentation
bin1001100011100…
…0010010011111
32210102002112212
42120320102133
540224421242
63550551035
7664433645
oct230702237
983362485
1040076447
1120693034
121150847b
1383c2598
145473195
1537b9782
hex263849f

40076447 has 4 divisors (see below), whose sum is σ = 40640976. Its totient is φ = 39511920.

The previous prime is 40076441. The next prime is 40076503. The reversal of 40076447 is 74467004.

40076447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40076447 - 210 = 40075423 is a prime.

It is a super-2 number, since 2×400764472 = 3212243208287618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40076441) by changing a digit.

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, 282158 + ... + 282299.

It is an arithmetic number, because the mean of its divisors is an integer number (10160244).

Almost surely, 240076447 is an apocalyptic number.

40076447 is a deficient number, since it is larger than the sum of its proper divisors (564529).

40076447 is an equidigital number, since it uses as much as digits as its factorization.

40076447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564528.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 40076447 is about 6330.5961014742. The cubic root of 40076447 is about 342.2129215714.

The spelling of 40076447 in words is "forty million, seventy-six thousand, four hundred forty-seven".

Divisors: 1 71 564457 40076447