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6864465630 = 23511791791471
BaseRepresentation
bin1100110010010011…
…10110111011011110
3122201101200222120210
412121021312323132
5103024300400010
63053053153250
7332051665221
oct63111667336
918641628523
106864465630
112a028a26a0
1213b6a8b826
138552003a9
144919595b8
152a2995b20
hex199276ede

6864465630 has 128 divisors (see below), whose sum is σ = 18314035200. Its totient is φ = 1632758400.

The previous prime is 6864465623. The next prime is 6864465659. The reversal of 6864465630 is 365644686.

It is a self number, because there is not a number n which added to its sum of digits gives 6864465630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4665795 + ... + 4667265.

It is an arithmetic number, because the mean of its divisors is an integer number (143078400).

Almost surely, 26864465630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6864465630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9157017600).

6864465630 is an abundant number, since it is smaller than the sum of its proper divisors (11449569570).

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

6864465630 is a wasteful number, since it uses less digits than its factorization.

6864465630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The square root of 6864465630 is about 82852.0707647069. The cubic root of 6864465630 is about 1900.5045409853.

It can be divided in two parts, 68644656 and 30, that added together give a palindrome (68644686).

The spelling of 6864465630 in words is "six billion, eight hundred sixty-four million, four hundred sixty-five thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 79 110 158 165 179 237 330 358 395 474 537 790 869 895 1074 1185 1471 1738 1790 1969 2370 2607 2685 2942 3938 4345 4413 5214 5370 5907 7355 8690 8826 9845 11814 13035 14141 14710 16181 19690 22065 26070 28282 29535 32362 42423 44130 48543 59070 70705 80905 84846 97086 116209 141410 155551 161810 212115 232418 242715 263309 311102 348627 424230 466653 485430 526618 581045 697254 777755 789927 933306 1162090 1278299 1316545 1555510 1579854 1743135 2333265 2556598 2633090 2896399 3486270 3834897 3949635 4666530 5792798 6391495 7669794 7899270 8689197 12782990 14481995 17378394 19174485 20801411 28963990 38348970 41602822 43445985 62404233 86891970 104007055 124808466 208014110 228815521 312021165 457631042 624042330 686446563 1144077605 1372893126 2288155210 3432232815 6864465630