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105242444 = 22171981457
BaseRepresentation
bin1100100010111…
…01111101001100
321100000212111022
412101131331030
5203420224234
614235413312
72415355166
oct621357514
9240025438
10105242444
115445222a
122b2b4238
1318a5aa48
14dd97936
15938ce2e
hex645df4c

105242444 has 24 divisors (see below), whose sum is σ = 205274160. Its totient is φ = 46918656.

The previous prime is 105242383. The next prime is 105242477. The reversal of 105242444 is 444242501.

It is a super-2 number, since 2×1052424442 = 22151944038186272, which contains 22 as substring.

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, 39437 + ... + 42020.

It is an arithmetic number, because the mean of its divisors is an integer number (8553090).

Almost surely, 2105242444 is an apocalyptic number.

It is an amenable number.

105242444 is a deficient number, since it is larger than the sum of its proper divisors (100031716).

105242444 is a wasteful number, since it uses less digits than its factorization.

105242444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81497 (or 81495 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 105242444 is about 10258.7740008249. The cubic root of 105242444 is about 472.1322226043.

Adding to 105242444 its reverse (444242501), we get a palindrome (549484945).

The spelling of 105242444 in words is "one hundred five million, two hundred forty-two thousand, four hundred forty-four".

Divisors: 1 2 4 17 19 34 38 68 76 323 646 1292 81457 162914 325828 1384769 1547683 2769538 3095366 5539076 6190732 26310611 52621222 105242444