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19027090 = 254873907
BaseRepresentation
bin100100010010…
…1010010010010
31022210200021001
41020211102102
514332331330
61515452214
7320504365
oct110452222
938720231
1019027090
11a816375
12645706a
133c32644
1427540dc
151a0c9ca
hex1225492

19027090 has 16 divisors (see below), whose sum is σ = 34327872. Its totient is φ = 7593264.

The previous prime is 19027081. The next prime is 19027111. The reversal of 19027090 is 9072091.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (2145492).

Almost surely, 219027090 is an apocalyptic number.

19027090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19027090 is a deficient number, since it is larger than the sum of its proper divisors (15300782).

19027090 is a wasteful number, since it uses less digits than its factorization.

19027090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 19027090 is about 4362.0052728075. The cubic root of 19027090 is about 266.9669239468.

The spelling of 19027090 in words is "nineteen million, twenty-seven thousand, ninety".

Divisors: 1 2 5 10 487 974 2435 3907 4870 7814 19535 39070 1902709 3805418 9513545 19027090