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19106049 = 363110093
BaseRepresentation
bin100100011100…
…0100100000001
31022221200120110
41020320210001
514342343144
61521301533
7321253524
oct110704401
938850513
1019106049
11a86a726
1264948a9
133c5c571
142774bbb
151a260b9
hex1238901

19106049 has 8 divisors (see below), whose sum is σ = 25517632. Its totient is φ = 12715920.

The previous prime is 19105997. The next prime is 19106051. The reversal of 19106049 is 94060191.

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

It is not a de Polignac number, because 19106049 - 213 = 19097857 is a prime.

It is a super-2 number, since 2×191060492 = 730082216780802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19106089) 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, 3154 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (3189704).

Almost surely, 219106049 is an apocalyptic number.

It is an amenable number.

19106049 is a deficient number, since it is larger than the sum of its proper divisors (6411583).

19106049 is a wasteful number, since it uses less digits than its factorization.

19106049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10727.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 19106049 is about 4371.0466709931. The cubic root of 19106049 is about 267.3357025278.

The spelling of 19106049 in words is "nineteen million, one hundred six thousand, forty-nine".

Divisors: 1 3 631 1893 10093 30279 6368683 19106049