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105231744 = 273330449
BaseRepresentation
bin1100100010110…
…11010110000000
321100000022211000
412101123112000
5203414403434
614235252000
72415312042
oct621332600
9240008730
10105231744
1154445192
122b2aa000
1318a55c07
14dd93a92
159389b99
hex645b580

105231744 has 64 divisors (see below), whose sum is σ = 310590000. Its totient is φ = 35076096.

The previous prime is 105231743. The next prime is 105231767. The reversal of 105231744 is 447132501.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1052317442 = 22147439890563072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105231743) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11769 + ... + 18680.

Almost surely, 2105231744 is an apocalyptic number.

It is an amenable number.

105231744 is an abundant number, since it is smaller than the sum of its proper divisors (205358256).

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

105231744 is an equidigital number, since it uses as much as digits as its factorization.

105231744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472 (or 30454 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 105231744 is about 10258.2524827575. The cubic root of 105231744 is about 472.1162214999.

The spelling of 105231744 in words is "one hundred five million, two hundred thirty-one thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 288 384 432 576 864 1152 1728 3456 30449 60898 91347 121796 182694 243592 274041 365388 487184 548082 730776 822123 974368 1096164 1461552 1644246 1948736 2192328 2923104 3288492 3897472 4384656 5846208 6576984 8769312 11692416 13153968 17538624 26307936 35077248 52615872 105231744