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19049055 = 351269937
BaseRepresentation
bin100100010101…
…0101001011111
31022211210101120
41020222221133
514334032210
61520142023
7320625414
oct110525137
938753346
1019049055
11a830923
126467913
133c3c63c
14275c10b
151a14270
hex122aa5f

19049055 has 8 divisors (see below), whose sum is σ = 30478512. Its totient is φ = 10159488.

The previous prime is 19049029. The next prime is 19049057. The reversal of 19049055 is 55094091.

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

It is not a de Polignac number, because 19049055 - 27 = 19048927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19049057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634954 + ... + 634983.

It is an arithmetic number, because the mean of its divisors is an integer number (3809814).

Almost surely, 219049055 is an apocalyptic number.

19049055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19049055 is a deficient number, since it is larger than the sum of its proper divisors (11429457).

19049055 is a wasteful number, since it uses less digits than its factorization.

19049055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269945.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 19049055 is about 4364.5223106315. The cubic root of 19049055 is about 267.0696139093.

The spelling of 19049055 in words is "nineteen million, forty-nine thousand, fifty-five".

Divisors: 1 3 5 15 1269937 3809811 6349685 19049055