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65134223 = 711192112
BaseRepresentation
bin1111100001110…
…1111010001111
311112120011100122
43320131322033
5113133243343
610244015155
71420426460
oct370357217
9145504318
1065134223
1133848340
12199914bb
1310656b7b
148916d67
155ab9068
hex3e1de8f

65134223 has 24 divisors (see below), whose sum is σ = 85887360. Its totient is φ = 47854800.

The previous prime is 65134159. The next prime is 65134231. The reversal of 65134223 is 32243156.

It is not a de Polignac number, because 65134223 - 26 = 65134159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65134192 and 65134201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65134243) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 308588 + ... + 308798.

It is an arithmetic number, because the mean of its divisors is an integer number (3578640).

Almost surely, 265134223 is an apocalyptic number.

65134223 is a deficient number, since it is larger than the sum of its proper divisors (20753137).

65134223 is a wasteful number, since it uses less digits than its factorization.

65134223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 248 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 65134223 is about 8070.5776125380. The cubic root of 65134223 is about 402.3491414123.

Adding to 65134223 its reverse (32243156), we get a palindrome (97377379).

The spelling of 65134223 in words is "sixty-five million, one hundred thirty-four thousand, two hundred twenty-three".

Divisors: 1 7 11 19 77 133 209 211 1463 1477 2321 4009 16247 28063 44099 44521 308693 311647 489731 845899 3428117 5921293 9304889 65134223