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19214417 = 831811279
BaseRepresentation
bin100100101001…
…1000001010001
31100011012020002
41021103001101
514404330132
61523455345
7322214465
oct111230121
940135202
1019214417
11a934092
126527555
133c999a1
1427a24a5
151a48262
hex1253051

19214417 has 8 divisors (see below), whose sum is σ = 19568640. Its totient is φ = 18863280.

The previous prime is 19214413. The next prime is 19214441. The reversal of 19214417 is 71441291.

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 19214417 - 22 = 19214413 is a prime.

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 19214417.

It is not an unprimeable number, because it can be changed into a prime (19214413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14384 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (2446080).

Almost surely, 219214417 is an apocalyptic number.

It is an amenable number.

19214417 is a deficient number, since it is larger than the sum of its proper divisors (354223).

19214417 is a wasteful number, since it uses less digits than its factorization.

19214417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543.

The product of its digits is 2016, while the sum is 29.

The square root of 19214417 is about 4383.4252588586. The cubic root of 19214417 is about 267.8401855898.

The spelling of 19214417 in words is "nineteen million, two hundred fourteen thousand, four hundred seventeen".

Divisors: 1 83 181 1279 15023 106157 231499 19214417