Search a number
-
+
286084540 = 22572291923
BaseRepresentation
bin10001000011010…
…100110110111100
3201221022121012201
4101003110312330
51041214201130
644215441244
710042451500
oct2103246674
9657277181
10286084540
1113753a605
127b986224
1347367cc1
1429dd0300
151a1b0bca
hex110d4dbc

286084540 has 36 divisors (see below), whose sum is σ = 698866056. Its totient is φ = 98085792.

The previous prime is 286084499. The next prime is 286084541. The reversal of 286084540 is 45480682.

It is a self number, because there is not a number n which added to its sum of digits gives 286084540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286084541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144982 + ... + 146941.

It is an arithmetic number, because the mean of its divisors is an integer number (19412946).

Almost surely, 2286084540 is an apocalyptic number.

286084540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286084540 is an abundant number, since it is smaller than the sum of its proper divisors (412781516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286084540 is a wasteful number, since it uses less digits than its factorization.

286084540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291946 (or 291937 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 286084540 is about 16914.0338181050. The cubic root of 286084540 is about 658.9181388334.

The spelling of 286084540 in words is "two hundred eighty-six million, eighty-four thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 291923 583846 1167692 1459615 2043461 2919230 4086922 5838460 8173844 10217305 14304227 20434610 28608454 40869220 57216908 71521135 143042270 286084540