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19149104 = 2413432141
BaseRepresentation
bin100100100001…
…1000100110000
31100000212122002
41021003010300
514400232404
61522233132
7321523202
oct111030460
940025562
1019149104
11a89a007
1264b57a8
133c76040
142786772
151a33c1e
hex1243130

19149104 has 40 divisors (see below), whose sum is σ = 40903632. Its totient is φ = 8628480.

The previous prime is 19149083. The next prime is 19149113. The reversal of 19149104 is 40194191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7874 + ... + 10014.

Almost surely, 219149104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19149104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20451816).

19149104 is an abundant number, since it is smaller than the sum of its proper divisors (21754528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19149104 is a wasteful number, since it uses less digits than its factorization.

19149104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2199 counting only the distinct ones).

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

The square root of 19149104 is about 4375.9689212790. The cubic root of 19149104 is about 267.5363632984.

The spelling of 19149104 in words is "nineteen million, one hundred forty-nine thousand, one hundred four".

Divisors: 1 2 4 8 13 16 26 43 52 86 104 172 208 344 559 688 1118 2141 2236 4282 4472 8564 8944 17128 27833 34256 55666 92063 111332 184126 222664 368252 445328 736504 1196819 1473008 2393638 4787276 9574552 19149104