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19834216 = 232479277
BaseRepresentation
bin100101110101…
…0010101101000
31101022200102121
41023222111220
520034143331
61545041024
7330405463
oct113522550
941280377
1019834216
1110217816
126786174
134155b2c
1428c42da
151b1bc11
hex12ea568

19834216 has 8 divisors (see below), whose sum is σ = 37189170. Its totient is φ = 9917104.

The previous prime is 19834193. The next prime is 19834229. The reversal of 19834216 is 61243891.

It can be written as a sum of positive squares in only one way, i.e., 11249316 + 8584900 = 3354^2 + 2930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×198342162 = 786792248669312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239631 + ... + 1239646.

Almost surely, 219834216 is an apocalyptic number.

It is an amenable number.

19834216 is a deficient number, since it is larger than the sum of its proper divisors (17354954).

19834216 is a wasteful number, since it uses less digits than its factorization.

19834216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479283 (or 2479279 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 19834216 is about 4453.5621697693. The cubic root of 19834216 is about 270.6896680472.

The spelling of 19834216 in words is "nineteen million, eight hundred thirty-four thousand, two hundred sixteen".

Divisors: 1 2 4 8 2479277 4958554 9917108 19834216