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19084290 = 2351275009
BaseRepresentation
bin100100011001…
…1010000000010
31022220120201120
41020303100002
514341144130
61521013110
7321133221
oct110632002
938816646
1019084290
11a855345
126484196
133c526a4
14276acb8
151a1e910
hex1233402

19084290 has 32 divisors (see below), whose sum is σ = 46172160. Its totient is φ = 5048064.

The previous prime is 19084271. The next prime is 19084297. The reversal of 19084290 is 9248091.

It is not an unprimeable number, because it can be changed into a prime (19084297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306 + ... + 6314.

It is an arithmetic number, because the mean of its divisors is an integer number (1442880).

Almost surely, 219084290 is an apocalyptic number.

19084290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19084290 is an abundant number, since it is smaller than the sum of its proper divisors (27087870).

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

19084290 is a wasteful number, since it uses less digits than its factorization.

19084290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 19084290 is about 4368.5569699845. The cubic root of 19084290 is about 267.2341785346.

The spelling of 19084290 in words is "nineteen million, eighty-four thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 127 254 381 635 762 1270 1905 3810 5009 10018 15027 25045 30054 50090 75135 150270 636143 1272286 1908429 3180715 3816858 6361430 9542145 19084290