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65336530 = 2573130109
BaseRepresentation
bin1111100100111…
…1010011010010
311112221102212111
43321033103102
5113211232110
610252215534
71422231340
oct371172322
9145842774
1065336530
1133976336
1219a6a5aa
13106c7c8c
14896a990
155b08e8a
hex3e4f4d2

65336530 has 32 divisors (see below), whose sum is σ = 138746880. Its totient is φ = 21677760.

The previous prime is 65336527. The next prime is 65336539. The reversal of 65336530 is 3563356.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 65336492 and 65336501.

It is not an unprimeable number, because it can be changed into a prime (65336539) 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, 12885 + ... + 17224.

It is an arithmetic number, because the mean of its divisors is an integer number (4335840).

Almost surely, 265336530 is an apocalyptic number.

65336530 is an abundant number, since it is smaller than the sum of its proper divisors (73410350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65336530 is a wasteful number, since it uses less digits than its factorization.

65336530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30154.

The product of its (nonzero) digits is 24300, while the sum is 31.

The square root of 65336530 is about 8083.1015087032. The cubic root of 65336530 is about 402.7652765610.

Adding to 65336530 its reverse (3563356), we get a palindrome (68899886).

The spelling of 65336530 in words is "sixty-five million, three hundred thirty-six thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 2170 30109 60218 150545 210763 301090 421526 933379 1053815 1866758 2107630 4666895 6533653 9333790 13067306 32668265 65336530