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287927116 = 22376119139
BaseRepresentation
bin10001001010010…
…110101101001100
3202001210012202021
4101022112231030
51042202131431
644323135524
710064224441
oct2112265514
9661705667
10287927116
111385889a4
12805145a4
1347861899
142a34d9c8
151a426b11
hex11296b4c

287927116 has 12 divisors (see below), whose sum is σ = 504032760. Its totient is φ = 143917760.

The previous prime is 287927099. The next prime is 287927173. The reversal of 287927116 is 611729782.

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 3 ways as a sum of consecutive naturals, for example, 5475 + ... + 24613.

It is an arithmetic number, because the mean of its divisors is an integer number (42002730).

Almost surely, 2287927116 is an apocalyptic number.

It is an amenable number.

287927116 is a deficient number, since it is larger than the sum of its proper divisors (216105644).

287927116 is a wasteful number, since it uses less digits than its factorization.

287927116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22904 (or 22902 counting only the distinct ones).

The product of its digits is 84672, while the sum is 43.

The square root of 287927116 is about 16968.4152471585. The cubic root of 287927116 is about 660.3297372860.

The spelling of 287927116 in words is "two hundred eighty-seven million, nine hundred twenty-seven thousand, one hundred sixteen".

Divisors: 1 2 4 3761 7522 15044 19139 38278 76556 71981779 143963558 287927116