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105731164 = 22711973539
BaseRepresentation
bin1100100110101…
…01010001011100
321100221200220001
412103111101130
5204031344124
614254104044
72422462060
oct623252134
9240850801
10105731164
1154756430
122b4ab024
1318b9c326
1410083aa0
159437b44
hex64d545c

105731164 has 48 divisors (see below), whose sum is σ = 233130240. Its totient is φ = 40757760.

The previous prime is 105731149. The next prime is 105731167. The reversal of 105731164 is 461137501.

It is a super-2 number, since 2×1057311642 = 22358158081589792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105731167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28107 + ... + 31645.

It is an arithmetic number, because the mean of its divisors is an integer number (4856880).

Almost surely, 2105731164 is an apocalyptic number.

105731164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105731164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116565120).

105731164 is an abundant number, since it is smaller than the sum of its proper divisors (127399076).

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

105731164 is a wasteful number, since it uses less digits than its factorization.

105731164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658 (or 3656 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 105731164 is about 10282.5660221561. The cubic root of 105731164 is about 472.8619161968.

Adding to 105731164 its reverse (461137501), we get a palindrome (566868665).

The spelling of 105731164 in words is "one hundred five million, seven hundred thirty-one thousand, one hundred sixty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 97 154 194 308 388 679 1067 1358 2134 2716 3539 4268 7078 7469 14156 14938 24773 29876 38929 49546 77858 99092 155716 272503 343283 545006 686566 1090012 1373132 2402981 3776113 4805962 7552226 9611924 15104452 26432791 52865582 105731164