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19882885 = 511361507
BaseRepresentation
bin100101111011…
…0001110000101
31101102011012011
41023312032011
520042223020
61550054221
7331000411
oct113661605
941364164
1019882885
1110250340
1267aa371
134172029
1428d7d41
151b2b35a
hex12f6385

19882885 has 8 divisors (see below), whose sum is σ = 26028576. Its totient is φ = 14460240.

The previous prime is 19882871. The next prime is 19882913. The reversal of 19882885 is 58828891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19882885 - 213 = 19874693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180699 + ... + 180808.

It is an arithmetic number, because the mean of its divisors is an integer number (3253572).

Almost surely, 219882885 is an apocalyptic number.

It is an amenable number.

19882885 is a deficient number, since it is larger than the sum of its proper divisors (6145691).

19882885 is a wasteful number, since it uses less digits than its factorization.

19882885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361523.

The product of its digits is 368640, while the sum is 49.

The square root of 19882885 is about 4459.0228750254. The cubic root of 19882885 is about 270.9108923960.

The spelling of 19882885 in words is "nineteen million, eight hundred eighty-two thousand, eight hundred eighty-five".

Divisors: 1 5 11 55 361507 1807535 3976577 19882885