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40003505 = 513957559
BaseRepresentation
bin1001100010011…
…0011110110001
32210021101111022
42120212132301
540220103010
63545225225
7664011203
oct230463661
983241438
1040003505
1120643253
1211492215
138398319
145454773
1537a2d55
hex26267b1

40003505 has 8 divisors (see below), whose sum is σ = 48350400. Its totient is φ = 31772016.

The previous prime is 40003501. The next prime is 40003511. The reversal of 40003505 is 50530004.

40003505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40003505 - 22 = 40003501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40003501) 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 7 ways as a sum of consecutive naturals, for example, 28085 + ... + 29474.

It is an arithmetic number, because the mean of its divisors is an integer number (6043800).

Almost surely, 240003505 is an apocalyptic number.

It is an amenable number.

40003505 is a deficient number, since it is larger than the sum of its proper divisors (8346895).

40003505 is a wasteful number, since it uses less digits than its factorization.

40003505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57703.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 40003505 is about 6324.8324088469. The cubic root of 40003505 is about 342.0051781531.

Adding to 40003505 its reverse (50530004), we get a palindrome (90533509).

The spelling of 40003505 in words is "forty million, three thousand, five hundred five".

Divisors: 1 5 139 695 57559 287795 8000701 40003505