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40137415 = 523379433
BaseRepresentation
bin1001100100011…
…1001011000111
32210112012011221
42121013023013
540233344130
63552141211
7665106463
oct231071307
983465157
1040137415
112072491a
1211537807
138414266
14548b4a3
1537cc87a
hex26472c7

40137415 has 16 divisors (see below), whose sum is σ = 51622848. Its totient is φ = 29880576.

The previous prime is 40137413. The next prime is 40137431. The reversal of 40137415 is 51473104.

40137415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40137415 - 21 = 40137413 is a prime.

It is a super-2 number, since 2×401374152 = 3222024165764450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40137415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40137413) 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 15 ways as a sum of consecutive naturals, for example, 462 + ... + 8971.

It is an arithmetic number, because the mean of its divisors is an integer number (3226428).

Almost surely, 240137415 is an apocalyptic number.

40137415 is a deficient number, since it is larger than the sum of its proper divisors (11485433).

40137415 is a wasteful number, since it uses less digits than its factorization.

40137415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9498.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 40137415 is about 6335.4096158023. The cubic root of 40137415 is about 342.3863689683.

The spelling of 40137415 in words is "forty million, one hundred thirty-seven thousand, four hundred fifteen".

Divisors: 1 5 23 37 115 185 851 4255 9433 47165 216959 349021 1084795 1745105 8027483 40137415