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14321749 = 131101673
BaseRepresentation
bin110110101000…
…100001010101
3222221121202011
4312220201111
512131243444
61230544221
7232506241
oct66504125
928847664
1014321749
1180a2162
124968071
132c75a10
141c8b421
1513cd734
hexda8855

14321749 has 4 divisors (see below), whose sum is σ = 15423436. Its totient is φ = 13220064.

The previous prime is 14321711. The next prime is 14321771. The reversal of 14321749 is 94712341.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1768900 + 12552849 = 1330^2 + 3543^2 .

It is not a de Polignac number, because 14321749 - 217 = 14190677 is a prime.

It is a super-2 number, since 2×143217492 = 410224988838002, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 14321749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14321779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550824 + ... + 550849.

It is an arithmetic number, because the mean of its divisors is an integer number (3855859).

Almost surely, 214321749 is an apocalyptic number.

It is an amenable number.

14321749 is a deficient number, since it is larger than the sum of its proper divisors (1101687).

14321749 is a wasteful number, since it uses less digits than its factorization.

14321749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101686.

The product of its digits is 6048, while the sum is 31.

The square root of 14321749 is about 3784.4086724348. The cubic root of 14321749 is about 242.8465954721.

The spelling of 14321749 in words is "fourteen million, three hundred twenty-one thousand, seven hundred forty-nine".

Divisors: 1 13 1101673 14321749