Search a number
-
+
105231232 = 274491831
BaseRepresentation
bin1100100010110…
…11001110000000
321100000022010001
412101123032000
5203414344412
614235245344
72415310411
oct621331600
9240008101
10105231232
1154444867
122b2a9854
1318a55902
14dd93808
159389957
hex645b380

105231232 has 32 divisors (see below), whose sum is σ = 210222000. Its totient is φ = 52469760.

The previous prime is 105231211. The next prime is 105231281. The reversal of 105231232 is 232132501.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1052312322 = 22147224376475648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56557 + ... + 58387.

Almost surely, 2105231232 is an apocalyptic number.

It is an amenable number.

105231232 is a deficient number, since it is larger than the sum of its proper divisors (104990768).

105231232 is an equidigital number, since it uses as much as digits as its factorization.

105231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294 (or 2282 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 105231232 is about 10258.2275272096. The cubic root of 105231232 is about 472.1154558124.

Adding to 105231232 its reverse (232132501), we get a palindrome (337363733).

The spelling of 105231232 in words is "one hundred five million, two hundred thirty-one thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 128 449 898 1796 1831 3592 3662 7184 7324 14368 14648 28736 29296 57472 58592 117184 234368 822119 1644238 3288476 6576952 13153904 26307808 52615616 105231232