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65085568430 = 25383137312377
BaseRepresentation
bin111100100111011001…
…101111010110101110
320012222220222110010112
4330213121233112232
52031243401142210
645522213340022
74462611126551
oct744731572656
9205886873115
1065085568430
112566a119983
1210745037612
1361a324888c
14321606a698
151a5de5cd05
hexf2766f5ae

65085568430 has 32 divisors (see below), whose sum is σ = 117554955264. Its totient is φ = 25945244416.

The previous prime is 65085568421. The next prime is 65085568441. The reversal of 65085568430 is 3486558056.

It is a super-2 number, since 2×650855684302 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5252402 + ... + 5264778.

It is an arithmetic number, because the mean of its divisors is an integer number (3673592352).

Almost surely, 265085568430 is an apocalyptic number.

65085568430 is a deficient number, since it is larger than the sum of its proper divisors (52469386834).

65085568430 is a wasteful number, since it uses less digits than its factorization.

65085568430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14140.

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 65085568430 in words is "sixty-five billion, eighty-five million, five hundred sixty-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 383 766 1373 1915 2746 3830 6865 12377 13730 24754 61885 123770 525859 1051718 2629295 4740391 5258590 9480782 16993621 23701955 33987242 47403910 84968105 169936210 6508556843 13017113686 32542784215 65085568430