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105412220 = 22523229157
BaseRepresentation
bin1100100100001…
…11011001111100
321100100111101022
412102013121330
5203441142340
614243203312
72416663154
oct622073174
9240314338
10105412220
1154558841
122b376538
1318aba0c4
14dddd764
1593c33b5
hex648767c

105412220 has 24 divisors (see below), whose sum is σ = 230991264. Its totient is φ = 40331456.

The previous prime is 105412207. The next prime is 105412231. The reversal of 105412220 is 22214501.

It is a super-2 number, since 2×1054122202 = 22223472250656800, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114119 + ... + 115038.

It is an arithmetic number, because the mean of its divisors is an integer number (9624636).

Almost surely, 2105412220 is an apocalyptic number.

105412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105412220 is an abundant number, since it is smaller than the sum of its proper divisors (125579044).

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

105412220 is a wasteful number, since it uses less digits than its factorization.

105412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229189 (or 229187 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 105412220 is about 10267.0453393369. The cubic root of 105412220 is about 472.3859657809.

Adding to 105412220 its reverse (22214501), we get a palindrome (127626721).

The spelling of 105412220 in words is "one hundred five million, four hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 229157 458314 916628 1145785 2291570 4583140 5270611 10541222 21082444 26353055 52706110 105412220