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40104415 = 513616991
BaseRepresentation
bin1001100011111…
…1000111011111
32210110111220201
42120333013133
540231320130
63551324331
7664611331
oct230770737
983414821
1040104415
112070204a
12115206a7
138402230
14547d451
1537c2bca
hex263f1df

40104415 has 8 divisors (see below), whose sum is σ = 51827328. Its totient is φ = 29615520.

The previous prime is 40104397. The next prime is 40104431. The reversal of 40104415 is 51440104.

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

It is a de Polignac number, because none of the positive numbers 2k-40104415 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40104392 and 40104401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308431 + ... + 308560.

It is an arithmetic number, because the mean of its divisors is an integer number (6478416).

Almost surely, 240104415 is an apocalyptic number.

40104415 is a deficient number, since it is larger than the sum of its proper divisors (11722913).

40104415 is a wasteful number, since it uses less digits than its factorization.

40104415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617009.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 40104415 is about 6332.8046709179. The cubic root of 40104415 is about 342.2925093438.

Adding to 40104415 its reverse (51440104), we get a palindrome (91544519).

The spelling of 40104415 in words is "forty million, one hundred four thousand, four hundred fifteen".

Divisors: 1 5 13 65 616991 3084955 8020883 40104415