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8028545638245 = 3511217260202419
BaseRepresentation
bin111010011010100101010…
…0111000101111101100101
31001102112002011001001222020
41310311022213011331211
52023014430140410440
625024132444053353
71456020562640316
oct164651247057545
931375064031866
108028545638245
112615983788800
12a97b9b834259
1346311c885c72
141da8258a460d
15ddc9305c3d0
hex74d4a9c5f65

8028545638245 has 48 divisors (see below), whose sum is σ = 14950190243520. Its totient is φ = 3663650045440.

The previous prime is 8028545638241. The next prime is 8028545638273. The reversal of 8028545638245 is 5428365458208.

It is not a de Polignac number, because 8028545638245 - 22 = 8028545638241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8028545638241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130070355 + ... + 130132064.

It is an arithmetic number, because the mean of its divisors is an integer number (311462296740).

Almost surely, 28028545638245 is an apocalyptic number.

8028545638245 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8028545638245 is a deficient number, since it is larger than the sum of its proper divisors (6921644605275).

8028545638245 is a wasteful number, since it uses less digits than its factorization.

8028545638245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260202466 (or 260202455 counting only the distinct ones).

The product of its (nonzero) digits is 73728000, while the sum is 60.

The spelling of 8028545638245 in words is "eight trillion, twenty-eight billion, five hundred forty-five million, six hundred thirty-eight thousand, two hundred forty-five".

Divisors: 1 3 5 11 15 17 33 51 55 85 121 165 187 255 363 561 605 935 1815 2057 2805 6171 10285 30855 260202419 780607257 1301012095 2862226609 3903036285 4423441123 8586679827 13270323369 14311133045 22117205615 31484492699 42933399135 48657852353 66351616845 94453478097 145973557059 157422463495 243289261765 472267390485 535236375883 729867785295 1605709127649 2676181879415 8028545638245