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19229141 = 52336767
BaseRepresentation
bin100100101011…
…0100111010101
31100011221102102
41021112213111
514410313031
61524051445
7322305431
oct111264725
940157372
1019229141
11a944158
126533b85
133ca35b9
1427a79c1
151a4c7cb
hex12569d5

19229141 has 4 divisors (see below), whose sum is σ = 19266432. Its totient is φ = 19191852.

The previous prime is 19229137. The next prime is 19229209. The reversal of 19229141 is 14192291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14192291 = 47929629.

It is a cyclic number.

It is not a de Polignac number, because 19229141 - 22 = 19229137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19229101) 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 3 ways as a sum of consecutive naturals, for example, 17861 + ... + 18906.

It is an arithmetic number, because the mean of its divisors is an integer number (4816608).

Almost surely, 219229141 is an apocalyptic number.

It is an amenable number.

19229141 is a deficient number, since it is larger than the sum of its proper divisors (37291).

19229141 is an equidigital number, since it uses as much as digits as its factorization.

19229141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37290.

The product of its digits is 1296, while the sum is 29.

The square root of 19229141 is about 4385.1044457344. The cubic root of 19229141 is about 267.9085833971.

The spelling of 19229141 in words is "nineteen million, two hundred twenty-nine thousand, one hundred forty-one".

Divisors: 1 523 36767 19229141