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65368641 = 31310316273
BaseRepresentation
bin1111100101011…
…1001001000001
311120000001220210
43321113021001
5113213244031
610253024333
71422424062
oct371271101
9146001823
1065368641
1133998478
1219a850a9
1310709790
148978569
155b13746
hex3e57241

65368641 has 16 divisors (see below), whose sum is σ = 94779776. Its totient is φ = 39833856.

The previous prime is 65368627. The next prime is 65368669. The reversal of 65368641 is 14686356.

65368641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65368641 - 26 = 65368577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 65368641.

It is not an unprimeable number, because it can be changed into a prime (65368441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4120 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (5923736).

Almost surely, 265368641 is an apocalyptic number.

It is an amenable number.

65368641 is a deficient number, since it is larger than the sum of its proper divisors (29411135).

65368641 is a wasteful number, since it uses less digits than its factorization.

65368641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16392.

The product of its digits is 103680, while the sum is 39.

The square root of 65368641 is about 8085.0875690991. The cubic root of 65368641 is about 402.8312482188.

The spelling of 65368641 in words is "sixty-five million, three hundred sixty-eight thousand, six hundred forty-one".

Divisors: 1 3 13 39 103 309 1339 4017 16273 48819 211549 634647 1676119 5028357 21789547 65368641