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64345041 = 327149449
BaseRepresentation
bin1111010101110…
…1001111010001
311111002001210200
43311131033101
5112433020131
610215045413
71410631605
oct365351721
9144061720
1064345041
1133359422
1219670869
131043b8b7
14878d505
1559b02e6
hex3d5d3d1

64345041 has 6 divisors (see below), whose sum is σ = 92942850. Its totient is φ = 42896688.

The previous prime is 64345013. The next prime is 64345049. The reversal of 64345041 is 14054346.

It can be written as a sum of positive squares in only one way, i.e., 42302016 + 22043025 = 6504^2 + 4695^2 .

It is not a de Polignac number, because 64345041 - 29 = 64344529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64344996 and 64345014.

It is not an unprimeable number, because it can be changed into a prime (64345049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3574716 + ... + 3574733.

It is an arithmetic number, because the mean of its divisors is an integer number (15490475).

Almost surely, 264345041 is an apocalyptic number.

It is an amenable number.

64345041 is a deficient number, since it is larger than the sum of its proper divisors (28597809).

64345041 is a wasteful number, since it uses less digits than its factorization.

64345041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149455 (or 7149452 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 64345041 is about 8021.5360748425. The cubic root of 64345041 is about 400.7175474611.

Adding to 64345041 its reverse (14054346), we get a palindrome (78399387).

The spelling of 64345041 in words is "sixty-four million, three hundred forty-five thousand, forty-one".

Divisors: 1 3 9 7149449 21448347 64345041