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19085528 = 2371130983
BaseRepresentation
bin100100011001…
…1100011011000
31022220122102102
41020303203120
514341214103
61521022532
7321136640
oct110634330
938818372
1019085528
11a856270
126484a48
133c53117
14276b520
151a1ee88
hex12338d8

19085528 has 32 divisors (see below), whose sum is σ = 44616960. Its totient is φ = 7435680.

The previous prime is 19085527. The next prime is 19085569. The reversal of 19085528 is 82558091.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19085491 and 19085500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19085527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14876 + ... + 16107.

It is an arithmetic number, because the mean of its divisors is an integer number (1394280).

Almost surely, 219085528 is an apocalyptic number.

It is an amenable number.

19085528 is an abundant number, since it is smaller than the sum of its proper divisors (25531432).

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

19085528 is a wasteful number, since it uses less digits than its factorization.

19085528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31007 (or 31003 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 19085528 is about 4368.6986620732. The cubic root of 19085528 is about 267.2399569132.

The spelling of 19085528 in words is "nineteen million, eighty-five thousand, five hundred twenty-eight".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 30983 61966 123932 216881 247864 340813 433762 681626 867524 1363252 1735048 2385691 2726504 4771382 9542764 19085528