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40414431 = 313471477
BaseRepresentation
bin1001101000101…
…0110011011111
32211001021011210
42122022303133
540321230211
64002115503
71000342221
oct232126337
984037153
1040414431
11208a3a62
121164bb93
1384b0385
145520411
1538349a6
hex268acdf

40414431 has 4 divisors (see below), whose sum is σ = 53885912. Its totient is φ = 26942952.

The previous prime is 40414411. The next prime is 40414433. The reversal of 40414431 is 13441404.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40414431 - 27 = 40414303 is a prime.

It is a super-2 number, since 2×404144312 = 3266652466107522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 40414398 and 40414407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40414433) 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, 6735736 + ... + 6735741.

It is an arithmetic number, because the mean of its divisors is an integer number (13471478).

Almost surely, 240414431 is an apocalyptic number.

40414431 is a deficient number, since it is larger than the sum of its proper divisors (13471481).

40414431 is a wasteful number, since it uses less digits than its factorization.

40414431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13471480.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 40414431 is about 6357.2345402698. The cubic root of 40414431 is about 343.1722453118.

Adding to 40414431 its reverse (13441404), we get a palindrome (53855835).

The spelling of 40414431 in words is "forty million, four hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 3 13471477 40414431