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64934648 = 2325731583
BaseRepresentation
bin1111011110110…
…1001011111000
311112012000120222
43313231023320
5113110402043
610235435212
71415635562
oct367551370
9145160528
1064934648
11337213a9
12198b5b08
13105b708c
1488a4332
155a79d68
hex3ded2f8

64934648 has 16 divisors (see below), whose sum is σ = 122230080. Its totient is φ = 32339968.

The previous prime is 64934621. The next prime is 64934663. The reversal of 64934648 is 84643946.

It is a junction number, because it is equal to n+sod(n) for n = 64934599 and 64934608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13736 + ... + 17847.

It is an arithmetic number, because the mean of its divisors is an integer number (7639380).

Almost surely, 264934648 is an apocalyptic number.

It is an amenable number.

64934648 is a deficient number, since it is larger than the sum of its proper divisors (57295432).

64934648 is a wasteful number, since it uses less digits than its factorization.

64934648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31846 (or 31842 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The square root of 64934648 is about 8058.2037700718. The cubic root of 64934648 is about 401.9377806893.

The spelling of 64934648 in words is "sixty-four million, nine hundred thirty-four thousand, six hundred forty-eight".

Divisors: 1 2 4 8 257 514 1028 2056 31583 63166 126332 252664 8116831 16233662 32467324 64934648