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511885042 = 21980916651
BaseRepresentation
bin11110100000101…
…011111011110010
31022200012110021021
4132200223323302
52022020310132
6122443250054
715453644134
oct3640537362
91280173237
10511885042
11242a44899
1212351992a
1382086976
144bdab054
152ee14997
hex1e82bef2

511885042 has 16 divisors (see below), whose sum is σ = 809287200. Its totient is φ = 242157600.

The previous prime is 511885027. The next prime is 511885067. The reversal of 511885042 is 240588115.

It is a junction number, because it is equal to n+sod(n) for n = 511884989 and 511885007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22417 + ... + 39067.

It is an arithmetic number, because the mean of its divisors is an integer number (50580450).

Almost surely, 2511885042 is an apocalyptic number.

511885042 is a deficient number, since it is larger than the sum of its proper divisors (297402158).

511885042 is a wasteful number, since it uses less digits than its factorization.

511885042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17481.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 511885042 is about 22624.8766184481. The cubic root of 511885042 is about 799.9401215600.

The spelling of 511885042 in words is "five hundred eleven million, eight hundred eighty-five thousand, forty-two".

Divisors: 1 2 19 38 809 1618 15371 16651 30742 33302 316369 632738 13470659 26941318 255942521 511885042