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65145241 = 717896151
BaseRepresentation
bin1111100010000…
…0100110011001
311112120201110201
43320200212121
5113134121431
610244142201
71420503550
oct370404631
9145521421
1065145241
1133855647
1219997961
131065bba5
14891ad97
155abc461
hex3e20999

65145241 has 16 divisors (see below), whose sum is σ = 79729920. Its totient is φ = 51955200.

The previous prime is 65145221. The next prime is 65145251. The reversal of 65145241 is 14254156.

It is a cyclic number.

It is not a de Polignac number, because 65145241 - 25 = 65145209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65145211) 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, 7516 + ... + 13666.

It is an arithmetic number, because the mean of its divisors is an integer number (4983120).

Almost surely, 265145241 is an apocalyptic number.

It is an amenable number.

65145241 is a deficient number, since it is larger than the sum of its proper divisors (14584679).

65145241 is a wasteful number, since it uses less digits than its factorization.

65145241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6264.

The product of its digits is 4800, while the sum is 28.

The square root of 65145241 is about 8071.2601866127. The cubic root of 65145241 is about 402.3718270436.

Adding to 65145241 its reverse (14254156), we get a palindrome (79399397).

The spelling of 65145241 in words is "sixty-five million, one hundred forty-five thousand, two hundred forty-one".

Divisors: 1 7 17 89 119 623 1513 6151 10591 43057 104567 547439 731969 3832073 9306463 65145241