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19244080 = 245240551
BaseRepresentation
bin100100101101…
…0010000110000
31100012200220201
41021122100300
514411302310
61524244544
7322400122
oct111322060
940180821
1019244080
11a9543a9
126540754
133caa33b
1427ad212
151a51e3a
hex125a430

19244080 has 20 divisors (see below), whose sum is σ = 44742672. Its totient is φ = 7697600.

The previous prime is 19244039. The next prime is 19244083. The reversal of 19244080 is 8044291.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (19244083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120196 + ... + 120355.

Almost surely, 219244080 is an apocalyptic number.

19244080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19244080 is an abundant number, since it is smaller than the sum of its proper divisors (25498592).

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

19244080 is a wasteful number, since it uses less digits than its factorization.

19244080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240564 (or 240558 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 19244080 is about 4386.8074952065. The cubic root of 19244080 is about 267.9779442754.

The spelling of 19244080 in words is "nineteen million, two hundred forty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 240551 481102 962204 1202755 1924408 2405510 3848816 4811020 9622040 19244080