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64285285715 = 5717225212
BaseRepresentation
bin111011110111101100…
…111001110101010011
320010221011002212121222
4323313230321311103
52023124013120330
645310544435255
74434022625030
oct736754716523
9203834085558
1064285285715
1125299405702
1210561018b2b
1360a64c7101
14317ba6a387
151a13a7c0e5
hexef7b39d53

64285285715 has 36 divisors (see below), whose sum is σ = 93690942768. Its totient is φ = 41471861760.

The previous prime is 64285285697. The next prime is 64285285721. The reversal of 64285285715 is 51758258246.

It is a happy number.

It is not a de Polignac number, because 64285285715 - 232 = 59990318419 is a prime.

It is a super-2 number, since 2×642852857152 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25498655 + ... + 25501175.

It is an arithmetic number, because the mean of its divisors is an integer number (2602526188).

Almost surely, 264285285715 is an apocalyptic number.

64285285715 is a deficient number, since it is larger than the sum of its proper divisors (29405657053).

64285285715 is an frugal number, since it uses more digits than its factorization.

64285285715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088 (or 2550 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 53.

The spelling of 64285285715 in words is "sixty-four billion, two hundred eighty-five million, two hundred eighty-five thousand, seven hundred fifteen".

Divisors: 1 5 7 17 35 85 119 289 595 1445 2023 2521 10115 12605 17647 42857 88235 214285 299999 728569 1499995 3642845 5099983 6355441 25499915 31777205 44488087 108042497 222440435 540212485 756297479 1836722449 3781487395 9183612245 12857057143 64285285715