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19443054 = 234768947
BaseRepresentation
bin100101000101…
…0110101101110
31100120210212010
41022022311232
514434134204
61532422050
7324156201
oct112126556
940523763
1019443054
11aa7a944
126617926
134049a87
142821938
151a90d89
hex128ad6e

19443054 has 16 divisors (see below), whose sum is σ = 39714048. Its totient is φ = 6343032.

The previous prime is 19443049. The next prime is 19443071. The reversal of 19443054 is 45034491.

It is a congruent number.

It is an unprimeable number.

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, 34192 + ... + 34755.

It is an arithmetic number, because the mean of its divisors is an integer number (2482128).

Almost surely, 219443054 is an apocalyptic number.

19443054 is an abundant number, since it is smaller than the sum of its proper divisors (20270994).

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

19443054 is a wasteful number, since it uses less digits than its factorization.

19443054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68999.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 19443054 is about 4409.4278540418. The cubic root of 19443054 is about 268.8983645192.

The spelling of 19443054 in words is "nineteen million, four hundred forty-three thousand, fifty-four".

Divisors: 1 2 3 6 47 94 141 282 68947 137894 206841 413682 3240509 6481018 9721527 19443054