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19082428 = 2219124977
BaseRepresentation
bin100100011001…
…0110010111100
31022220111011121
41020302302330
514341114203
61521000324
7321124621
oct110626274
938814147
1019082428
11a853a02
1264830a4
133c518a1
14276a348
151a1e0bd
hex1232cbc

19082428 has 12 divisors (see below), whose sum is σ = 33570432. Its totient is φ = 9490880.

The previous prime is 19082383. The next prime is 19082431. The reversal of 19082428 is 82428091.

It is a junction number, because it is equal to n+sod(n) for n = 19082393 and 19082402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11725 + ... + 13252.

It is an arithmetic number, because the mean of its divisors is an integer number (2797536).

Almost surely, 219082428 is an apocalyptic number.

It is an amenable number.

19082428 is a deficient number, since it is larger than the sum of its proper divisors (14488004).

19082428 is a wasteful number, since it uses less digits than its factorization.

19082428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25172 (or 25170 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 19082428 is about 4368.3438509348. The cubic root of 19082428 is about 267.2254871585.

The spelling of 19082428 in words is "nineteen million, eighty-two thousand, four hundred twenty-eight".

Divisors: 1 2 4 191 382 764 24977 49954 99908 4770607 9541214 19082428