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40580013 = 313526671
BaseRepresentation
bin1001101011001…
…1001110101101
32211100200022110
42122303032231
540342030023
64005434233
71001632035
oct232631655
984320273
1040580013
11209a7401
121170b979
13853a856
1455648c5
153868a93
hex26b33ad

40580013 has 4 divisors (see below), whose sum is σ = 54106688. Its totient is φ = 27053340.

The previous prime is 40580011. The next prime is 40580021. The reversal of 40580013 is 31008504.

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 not a de Polignac number, because 40580013 - 21 = 40580011 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 (40580011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6763333 + ... + 6763338.

It is an arithmetic number, because the mean of its divisors is an integer number (13526672).

Almost surely, 240580013 is an apocalyptic number.

It is an amenable number.

40580013 is a deficient number, since it is larger than the sum of its proper divisors (13526675).

40580013 is a wasteful number, since it uses less digits than its factorization.

40580013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13526674.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 40580013 is about 6370.2443438223. The cubic root of 40580013 is about 343.6402771351.

Adding to 40580013 its reverse (31008504), we get a palindrome (71588517).

The spelling of 40580013 in words is "forty million, five hundred eighty thousand, thirteen".

Divisors: 1 3 13526671 40580013