Search a number
-
+
185030244 = 22347174799
BaseRepresentation
bin10110000011101…
…01011001100100
3110220011111210000
423001311121210
5334331431434
630205501300
74404505530
oct1301653144
9426144700
10185030244
1195498a63
1251b71830
132c445669
141a806bc0
151139db99
hexb075664

185030244 has 120 divisors (see below), whose sum is σ = 585446400. Its totient is φ = 49745664.

The previous prime is 185030243. The next prime is 185030249. The reversal of 185030244 is 442030581.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (185030243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36157 + ... + 40955.

It is an arithmetic number, because the mean of its divisors is an integer number (4878720).

Almost surely, 2185030244 is an apocalyptic number.

185030244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 185030244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292723200).

185030244 is an abundant number, since it is smaller than the sum of its proper divisors (400416156).

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

185030244 is a wasteful number, since it uses less digits than its factorization.

185030244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 185030244 is about 13602.5822548515. The cubic root of 185030244 is about 569.8329704500.

The spelling of 185030244 in words is "one hundred eighty-five million, thirty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 27 28 34 36 42 51 54 63 68 81 84 102 108 119 126 153 162 189 204 238 252 306 324 357 378 459 476 567 612 714 756 918 1071 1134 1377 1428 1836 2142 2268 2754 3213 4284 4799 5508 6426 9598 9639 12852 14397 19196 19278 28794 33593 38556 43191 57588 67186 81583 86382 100779 129573 134372 163166 172764 201558 244749 259146 302337 326332 388719 403116 489498 518292 571081 604674 734247 777438 907011 978996 1142162 1209348 1468494 1554876 1713243 1814022 2202741 2284324 2721033 2936988 3426486 3628044 4405482 5139729 5442066 6608223 6852972 8810964 10279458 10884132 13216446 15419187 20558916 26432892 30838374 46257561 61676748 92515122 185030244