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255300502805 = 51132771631261
BaseRepresentation
bin1110110111000100011…
…0001000010100010101
3220101222022221022000222
43231301012020110111
513140323412042210
6313141115444125
724305404316465
oct3556106102425
9811868838028
10255300502805
11992aa529487
124158b756645
131b0c826339a
14c4dc777ba5
15699332d655
hex3b71188515

255300502805 has 16 divisors (see below), whose sum is σ = 310187731824. Its totient is φ = 201702036480.

The previous prime is 255300502783. The next prime is 255300502813. The reversal of 255300502805 is 508205003552.

It can be written as a sum of positive squares in 8 ways, for example, as 139052918404 + 116247584401 = 372898^2 + 340951^2 .

It is not a de Polignac number, because 255300502805 - 26 = 255300502741 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 659126 + ... + 972135.

It is an arithmetic number, because the mean of its divisors is an integer number (19386733239).

Almost surely, 2255300502805 is an apocalyptic number.

It is an amenable number.

255300502805 is a deficient number, since it is larger than the sum of its proper divisors (54887229019).

255300502805 is a wasteful number, since it uses less digits than its factorization.

255300502805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631656.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 255300502805 in words is "two hundred fifty-five billion, three hundred million, five hundred two thousand, eight hundred five".

Divisors: 1 5 113 277 565 1385 31301 156505 1631261 8156305 184332493 451859297 921662465 2259296485 51060100561 255300502805