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105230412 = 22327417581
BaseRepresentation
bin1100100010110…
…11000001001100
321100000020222200
412101123001030
5203414333122
614235241500
72415305130
oct621330114
9240006880
10105230412
1154444191
122b2a9290
1318a55421
14dd933c0
1593895ac
hex645b04c

105230412 has 36 divisors (see below), whose sum is σ = 303999696. Its totient is φ = 30065760.

The previous prime is 105230393. The next prime is 105230423. The reversal of 105230412 is 214032501.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1052304122 = 22146879219379488, which contains 22 as substring.

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

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 11 ways as a sum of consecutive naturals, for example, 208539 + ... + 209042.

It is an arithmetic number, because the mean of its divisors is an integer number (8444436).

Almost surely, 2105230412 is an apocalyptic number.

105230412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105230412 is an abundant number, since it is smaller than the sum of its proper divisors (198769284).

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

105230412 is a wasteful number, since it uses less digits than its factorization.

105230412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417598 (or 417593 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 105230412 is about 10258.1875592134. The cubic root of 105230412 is about 472.1142295108.

Adding to 105230412 its reverse (214032501), we get a palindrome (319262913).

The spelling of 105230412 in words is "one hundred five million, two hundred thirty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 417581 835162 1252743 1670324 2505486 2923067 3758229 5010972 5846134 7516458 8769201 11692268 15032916 17538402 26307603 35076804 52615206 105230412