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12550230 = 23257111811
BaseRepresentation
bin101111111000…
…000001010110
3212121121200100
4233320001112
511203101410
61124554530
7211450410
oct57700126
925547610
1012550230
1170a21a0
124252a46
1327a5594
1419499b0
15117d8c0
hexbf8056

12550230 has 96 divisors (see below), whose sum is σ = 40704768. Its totient is φ = 2606400.

The previous prime is 12550229. The next prime is 12550247. The reversal of 12550230 is 3205521.

It is a happy number.

12550230 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6025 + ... + 7835.

It is an arithmetic number, because the mean of its divisors is an integer number (424008).

Almost surely, 212550230 is an apocalyptic number.

12550230 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 12550230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20352384).

12550230 is an abundant number, since it is smaller than the sum of its proper divisors (28154538).

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

12550230 is a wasteful number, since it uses less digits than its factorization.

12550230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 12550230 is about 3542.6303786876. The cubic root of 12550230 is about 232.3898888937.

Adding to 12550230 its reverse (3205521), we get a palindrome (15755751).

The spelling of 12550230 in words is "twelve million, five hundred fifty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 11 14 15 18 21 22 30 33 35 42 45 55 63 66 70 77 90 99 105 110 126 154 165 198 210 231 315 330 385 462 495 630 693 770 990 1155 1386 1811 2310 3465 3622 5433 6930 9055 10866 12677 16299 18110 19921 25354 27165 32598 38031 39842 54330 59763 63385 76062 81495 99605 114093 119526 126770 139447 162990 179289 190155 199210 228186 278894 298815 358578 380310 418341 570465 597630 697235 836682 896445 1140930 1255023 1394470 1792890 2091705 2510046 4183410 6275115 12550230