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19189214 = 211872237
BaseRepresentation
bin100100100110…
…0110111011110
31100002220122122
41021030313132
514403023324
61523142542
7322051142
oct111146736
940086578
1019189214
11a917160
126514a52
133c8b385
142797222
151a40a5e
hex124cdde

19189214 has 8 divisors (see below), whose sum is σ = 31400568. Its totient is φ = 8722360.

The previous prime is 19189211. The next prime is 19189229. The reversal of 19189214 is 41298191.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19189211) 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, 436097 + ... + 436140.

It is an arithmetic number, because the mean of its divisors is an integer number (3925071).

Almost surely, 219189214 is an apocalyptic number.

19189214 is a deficient number, since it is larger than the sum of its proper divisors (12211354).

19189214 is a wasteful number, since it uses less digits than its factorization.

19189214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872250.

The product of its digits is 5184, while the sum is 35.

The square root of 19189214 is about 4380.5495089087. The cubic root of 19189214 is about 267.7230282529.

The spelling of 19189214 in words is "nineteen million, one hundred eighty-nine thousand, two hundred fourteen".

Divisors: 1 2 11 22 872237 1744474 9594607 19189214