Search a number
-
+
105231230 = 2513271877
BaseRepresentation
bin1100100010110…
…11001101111110
321100000022002222
412101123031332
5203414344410
614235245342
72415310406
oct621331576
9240008088
10105231230
1154444865
122b2a9852
1318a55900
14dd93806
159389955
hex645b37e

105231230 has 48 divisors (see below), whose sum is σ = 208233504. Its totient is φ = 38263680.

The previous prime is 105231211. The next prime is 105231281. The reversal of 105231230 is 32132501.

It is a super-2 number, since 2×1052312302 = 22147223534625800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105231199 and 105231208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119552 + ... + 120428.

It is an arithmetic number, because the mean of its divisors is an integer number (4338198).

Almost surely, 2105231230 is an apocalyptic number.

105231230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105231230 is a deficient number, since it is larger than the sum of its proper divisors (103002274).

105231230 is a wasteful number, since it uses less digits than its factorization.

105231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 105231230 is about 10258.2274297268. The cubic root of 105231230 is about 472.1154528214.

Adding to 105231230 its reverse (32132501), we get a palindrome (137363731).

The spelling of 105231230 in words is "one hundred five million, two hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 71 130 142 169 338 355 710 845 877 923 1690 1754 1846 4385 4615 8770 9230 11401 11999 22802 23998 57005 59995 62267 114010 119990 124534 148213 296426 311335 622670 741065 809471 1482130 1618942 4047355 8094710 10523123 21046246 52615615 105231230