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2920028886 = 23361886469
BaseRepresentation
bin1010111000001100…
…0001101011010110
321112111112211121000
42232003001223112
521440011411021
61201430204130
7132234556515
oct25603015326
97474484530
102920028886
111269309a15
12695ab3646
13376c64358
141d9b4a67c
15121548b26
hexae0c1ad6

2920028886 has 32 divisors (see below), whose sum is σ = 6595336800. Its totient is φ = 957385440.

The previous prime is 2920028843. The next prime is 2920028887. The reversal of 2920028886 is 6888200292.

2920028886 is a `hidden beast` number, since 292 + 0 + 0 + 288 + 86 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2920028887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439941 + ... + 446528.

It is an arithmetic number, because the mean of its divisors is an integer number (206104275).

Almost surely, 22920028886 is an apocalyptic number.

2920028886 is an abundant number, since it is smaller than the sum of its proper divisors (3675307914).

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

2920028886 is a wasteful number, since it uses less digits than its factorization.

2920028886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886541 (or 886535 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 2920028886 is about 54037.2916234705. The cubic root of 2920028886 is about 1429.3186128937.

The spelling of 2920028886 in words is "two billion, nine hundred twenty million, twenty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 27 54 61 122 183 366 549 1098 1647 3294 886469 1772938 2659407 5318814 7978221 15956442 23934663 47869326 54074609 108149218 162223827 324447654 486671481 973342962 1460014443 2920028886