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64863430 = 2529223667
BaseRepresentation
bin1111011101101…
…1110011000110
311112001101220021
43313123303012
5113101112210
610234125354
71415221132
oct367336306
9145041807
1064863430
1133682945
121988085a
1310590838
1488863c2
155a63bda
hex3ddbcc6

64863430 has 16 divisors (see below), whose sum is σ = 120780720. Its totient is φ = 25050592.

The previous prime is 64863391. The next prime is 64863443. The reversal of 64863430 is 3436846.

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 7 ways as a sum of consecutive naturals, for example, 111544 + ... + 112123.

It is an arithmetic number, because the mean of its divisors is an integer number (7548795).

Almost surely, 264863430 is an apocalyptic number.

64863430 is a deficient number, since it is larger than the sum of its proper divisors (55917290).

64863430 is a wasteful number, since it uses less digits than its factorization.

64863430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223703.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 64863430 is about 8053.7835828882. The cubic root of 64863430 is about 401.7907832738.

The spelling of 64863430 in words is "sixty-four million, eight hundred sixty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 223667 447334 1118335 2236670 6486343 12972686 32431715 64863430