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16382431 = 132295503
BaseRepresentation
bin111110011111…
…100111011111
31010211022110201
4332133213133
513143214211
61343044331
7256151122
oct76374737
933738421
1016382431
11927a3aa
1255a06a7
133517960
1422663b9
1516890c1
hexf9f9df

16382431 has 8 divisors (see below), whose sum is σ = 17722880. Its totient is φ = 15053472.

The previous prime is 16382413. The next prime is 16382437. The reversal of 16382431 is 13428361.

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

It is a cyclic number.

It is not a de Polignac number, because 16382431 - 211 = 16380383 is a prime.

It is a super-2 number, since 2×163824312 = 536768090939522, 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 16382431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16382437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226 + ... + 5728.

It is an arithmetic number, because the mean of its divisors is an integer number (2215360).

Almost surely, 216382431 is an apocalyptic number.

16382431 is a deficient number, since it is larger than the sum of its proper divisors (1340449).

16382431 is a wasteful number, since it uses less digits than its factorization.

16382431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745.

The product of its digits is 3456, while the sum is 28.

The square root of 16382431 is about 4047.5215873421. The cubic root of 16382431 is about 253.9760605292.

The spelling of 16382431 in words is "sixteen million, three hundred eighty-two thousand, four hundred thirty-one".

Divisors: 1 13 229 2977 5503 71539 1260187 16382431