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19044949 = 711247337
BaseRepresentation
bin100100010100…
…1101001010101
31022211120202111
41020221221111
514333414244
61520111021
7320610430
oct110515125
938746674
1019044949
11a828830
126465471
133c3a801
14275a817
151a12e34
hex1229a55

19044949 has 8 divisors (see below), whose sum is σ = 23744448. Its totient is φ = 14840160.

The previous prime is 19044941. The next prime is 19044953. The reversal of 19044949 is 94944091.

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

It is a cyclic number.

It is not a de Polignac number, because 19044949 - 23 = 19044941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19044941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123592 + ... + 123745.

It is an arithmetic number, because the mean of its divisors is an integer number (2968056).

Almost surely, 219044949 is an apocalyptic number.

It is an amenable number.

19044949 is a deficient number, since it is larger than the sum of its proper divisors (4699499).

19044949 is a wasteful number, since it uses less digits than its factorization.

19044949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247355.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 19044949 is about 4364.0519016162. The cubic root of 19044949 is about 267.0504236899.

The spelling of 19044949 in words is "nineteen million, forty-four thousand, nine hundred forty-nine".

Divisors: 1 7 11 77 247337 1731359 2720707 19044949