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228092965 = 562217333
BaseRepresentation
bin11011001100001…
…10110000100101
3120220012022201121
431212012300211
5431342433330
634344453541
75436521032
oct1546066045
9526168647
10228092965
11107830691
126447a2b1
1338342269
1422416389
151505817a
hexd986c25

228092965 has 8 divisors (see below), whose sum is σ = 273792888. Its totient is φ = 182420160.

The previous prime is 228092959. The next prime is 228092971. The reversal of 228092965 is 569290822.

It is an interprime number because it is at equal distance from previous prime (228092959) and next prime (228092971).

It can be written as a sum of positive squares in 4 ways, for example, as 23059204 + 205033761 = 4802^2 + 14319^2 .

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

It is not a de Polignac number, because 228092965 - 23 = 228092957 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, 27439 + ... + 34771.

It is an arithmetic number, because the mean of its divisors is an integer number (34224111).

Almost surely, 2228092965 is an apocalyptic number.

It is an amenable number.

228092965 is a deficient number, since it is larger than the sum of its proper divisors (45699923).

228092965 is an equidigital number, since it uses as much as digits as its factorization.

228092965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13559.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 228092965 is about 15102.7469355743. The cubic root of 228092965 is about 610.9944944114.

The spelling of 228092965 in words is "two hundred twenty-eight million, ninety-two thousand, nine hundred sixty-five".

Divisors: 1 5 6221 7333 31105 36665 45618593 228092965