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40487699 = 721432699
BaseRepresentation
bin1001101001110…
…0101100010011
32211011222200102
42122130230103
540331101244
64003443015
71001065640
oct232345423
984158612
1040487699
112094400a
121168646b
138507825
14553cdc7
15384b54e
hex269cb13

40487699 has 8 divisors (see below), whose sum is σ = 46310400. Its totient is φ = 34674696.

The previous prime is 40487687. The next prime is 40487701. The reversal of 40487699 is 99678404.

40487699 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 not a de Polignac number, because 40487699 - 28 = 40487443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40487599) 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, 13652 + ... + 16350.

It is an arithmetic number, because the mean of its divisors is an integer number (5788800).

Almost surely, 240487699 is an apocalyptic number.

40487699 is a deficient number, since it is larger than the sum of its proper divisors (5822701).

40487699 is a wasteful number, since it uses less digits than its factorization.

40487699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 40487699 is about 6362.9944994476. The cubic root of 40487699 is about 343.3795010234.

The spelling of 40487699 in words is "forty million, four hundred eighty-seven thousand, six hundred ninety-nine".

Divisors: 1 7 2143 2699 15001 18893 5783957 40487699