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2801630280555 = 34561113403371
BaseRepresentation
bin101000110001001110001…
…011010111101101101011
3100220211111102122102110000
4220301032023113231223
5331400214322434210
65543015015554043
7406261003314441
oct50611613275553
910824442572400
102801630280555
1199018a289487
12392b8438b923
131742671b93a2
149985754cb91
154cd244a0ac0
hex28c4e2d7b6b

2801630280555 has 40 divisors (see below), whose sum is σ = 5104512580464. Its totient is φ = 1469707675200.

The previous prime is 2801630280497. The next prime is 2801630280557. The reversal of 2801630280555 is 5550820361082.

2801630280555 is a `hidden beast` number, since 2 + 8 + 0 + 1 + 630 + 2 + 8 + 0 + 5 + 5 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2k-2801630280555 is a prime.

It is a super-2 number, since 2×28016302805552 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2801630280555.

It is not an unprimeable number, because it can be changed into a prime (2801630280557) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 56676981 + ... + 56726390.

Almost surely, 22801630280555 is an apocalyptic number.

2801630280555 is a deficient number, since it is larger than the sum of its proper divisors (2302882299909).

2801630280555 is a wasteful number, since it uses less digits than its factorization.

2801630280555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113403449 (or 113403440 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 2801630280555 in words is "two trillion, eight hundred one billion, six hundred thirty million, two hundred eighty thousand, five hundred fifty-five".

Divisors: 1 3 5 9 15 27 45 61 81 135 183 305 405 549 915 1647 2745 4941 8235 24705 113403371 340210113 567016855 1020630339 1701050565 3061891017 5103151695 6917605631 9185673051 15309455085 20752816893 34588028155 45928365255 62258450679 103764084465 186775352037 311292253395 560326056111 933876760185 2801630280555