Search a number
-
+
180550230 = 235723291289
BaseRepresentation
bin10101100001011…
…11101001010110
3110120201220100120
422300233221112
5332210101410
625525452410
74321436340
oct1260575126
9416656316
10180550230
1192a09073
1250571106
132b537473
1419d9c290
1510cb6570
hexac2fa56

180550230 has 128 divisors (see below), whose sum is σ = 534988800. Its totient is φ = 38083584.

The previous prime is 180550229. The next prime is 180550291. The reversal of 180550230 is 32055081.

It is a self number, because there is not a number n which added to its sum of digits gives 180550230.

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, 139426 + ... + 140714.

It is an arithmetic number, because the mean of its divisors is an integer number (4179600).

Almost surely, 2180550230 is an apocalyptic number.

180550230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 180550230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267494400).

180550230 is an abundant number, since it is smaller than the sum of its proper divisors (354438570).

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

180550230 is a wasteful number, since it uses less digits than its factorization.

180550230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 180550230 is about 13436.8980795420. The cubic root of 180550230 is about 565.1963501652.

The spelling of 180550230 in words is "one hundred eighty million, five hundred fifty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 29 30 35 42 46 58 69 70 87 105 115 138 145 161 174 203 210 230 290 322 345 406 435 483 609 667 690 805 870 966 1015 1218 1289 1334 1610 2001 2030 2415 2578 3045 3335 3867 4002 4669 4830 6090 6445 6670 7734 9023 9338 10005 12890 14007 18046 19335 20010 23345 27069 28014 29647 37381 38670 45115 46690 54138 59294 70035 74762 88941 90230 112143 135345 140070 148235 177882 186905 207529 224286 261667 270690 296470 373810 415058 444705 523334 560715 622587 785001 859763 889410 1037645 1121430 1245174 1308335 1570002 1719526 2075290 2579289 2616670 3112935 3925005 4298815 5158578 6018341 6225870 7850010 8597630 12036682 12896445 18055023 25792890 30091705 36110046 60183410 90275115 180550230