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90830005305 = 35131953462557
BaseRepresentation
bin101010010010111100…
…0111110010000111001
322200110002200100100120
41110211320332100321
52442004440132210
6105420550123453
76363565210044
oct1244570762071
9280402610316
1090830005305
1135580196396
121572a950589
138746a7c690
144579237c5b
15256917e270
hex1525e3e439

90830005305 has 64 divisors (see below), whose sum is σ = 167853047040. Its totient is φ = 41563431936.

The previous prime is 90830005291. The next prime is 90830005339. The reversal of 90830005305 is 50350003809.

It is not a de Polignac number, because 90830005305 - 224 = 90813228089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34914 + ... + 427643.

It is an arithmetic number, because the mean of its divisors is an integer number (2622703860).

Almost surely, 290830005305 is an apocalyptic number.

90830005305 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

90830005305 is a deficient number, since it is larger than the sum of its proper divisors (77023041735).

90830005305 is a wasteful number, since it uses less digits than its factorization.

90830005305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462650.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 90830005305 in words is "ninety billion, eight hundred thirty million, five thousand, three hundred five".

Divisors: 1 3 5 13 15 19 39 53 57 65 95 159 195 247 265 285 689 741 795 1007 1235 2067 3021 3445 3705 5035 10335 13091 15105 39273 65455 196365 462557 1387671 2312785 6013241 6938355 8788583 18039723 24515521 26365749 30066205 43942915 73546563 90198615 114251579 122577605 131828745 318701773 342754737 367732815 465794899 571257895 956105319 1397384697 1593508865 1713773685 2328974495 4780526595 6055333687 6986923485 18166001061 30276668435 90830005305