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65448285 = 3573120107
BaseRepresentation
bin1111100110101…
…0100101011101
311120011010011120
43321222211131
5113223321120
610254441153
71423205220
oct371524535
9146133146
1065448285
1133a422a1
1219b031b9
1310736ac6
1489995b7
155b2c140
hex3e6a95d

65448285 has 32 divisors (see below), whose sum is σ = 123543552. Its totient is φ = 28952640.

The previous prime is 65448281. The next prime is 65448311. The reversal of 65448285 is 58284456.

It is not a de Polignac number, because 65448285 - 22 = 65448281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65448281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6799 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (3860736).

Almost surely, 265448285 is an apocalyptic number.

It is an amenable number.

65448285 is a deficient number, since it is larger than the sum of its proper divisors (58095267).

65448285 is a wasteful number, since it uses less digits than its factorization.

65448285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153.

The product of its digits is 307200, while the sum is 42.

The square root of 65448285 is about 8090.0114338609. The cubic root of 65448285 is about 402.9947826518.

The spelling of 65448285 in words is "sixty-five million, four hundred forty-eight thousand, two hundred eighty-five".

Divisors: 1 3 5 7 15 21 31 35 93 105 155 217 465 651 1085 3255 20107 60321 100535 140749 301605 422247 623317 703745 1869951 2111235 3116585 4363219 9349755 13089657 21816095 65448285