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40088017 = 139288403
BaseRepresentation
bin1001100011101…
…1000111010001
32210102200102101
42120323013101
540230304032
63551120401
7664512454
oct230730721
983380371
1040088017
11206a07a2
1211513101
1383c7928
14547749b
1537bcde7
hex263b1d1

40088017 has 4 divisors (see below), whose sum is σ = 40376560. Its totient is φ = 39799476.

The previous prime is 40087987. The next prime is 40088029. The reversal of 40088017 is 71088004.

40088017 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40088017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40088047) 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, 144063 + ... + 144340.

It is an arithmetic number, because the mean of its divisors is an integer number (10094140).

Almost surely, 240088017 is an apocalyptic number.

It is an amenable number.

40088017 is a deficient number, since it is larger than the sum of its proper divisors (288543).

40088017 is a wasteful number, since it uses less digits than its factorization.

40088017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288542.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 40088017 is about 6331.5098515283. The cubic root of 40088017 is about 342.2458504929.

It can be divided in two parts, 4008 and 8017, that multiplied together give a triangular number (32132136 = T8016).

The spelling of 40088017 in words is "forty million, eighty-eight thousand, seventeen".

Divisors: 1 139 288403 40088017