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65445041 = 523112511
BaseRepresentation
bin1111100110100…
…1110010110001
311120010221201102
43321221302301
5113223220131
610254414145
71423162604
oct371516261
9146127642
1065445041
1133a3a912
1219b01355
131073549c
14899833b
155b2b1cb
hex3e69cb1

65445041 has 4 divisors (see below), whose sum is σ = 65462784. Its totient is φ = 65427300.

The previous prime is 65445007. The next prime is 65445043. The reversal of 65445041 is 14054456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65445041 - 210 = 65444017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65444995 and 65445013.

It is not an unprimeable number, because it can be changed into a prime (65445043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025 + ... + 11486.

It is an arithmetic number, because the mean of its divisors is an integer number (16365696).

Almost surely, 265445041 is an apocalyptic number.

It is an amenable number.

65445041 is a deficient number, since it is larger than the sum of its proper divisors (17743).

65445041 is a wasteful number, since it uses less digits than its factorization.

65445041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17742.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 65445041 is about 8089.8109372222. The cubic root of 65445041 is about 402.9881242819.

Adding to 65445041 its reverse (14054456), we get a palindrome (79499497).

The spelling of 65445041 in words is "sixty-five million, four hundred forty-five thousand, forty-one".

Divisors: 1 5231 12511 65445041