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105111104 = 267231012
BaseRepresentation
bin1100100001111…
…01111001000000
321022210012022212
412100331321000
5203402023404
614232521252
72414300240
oct620757100
9238705285
10105111104
115437258a
122b250228
1318a13027
14dd61b20
15936406e
hex643de40

105111104 has 84 divisors (see below), whose sum is σ = 251228352. Its totient is φ = 42662400.

The previous prime is 105111103. The next prime is 105111121. The reversal of 105111104 is 401111501.

It is a super-2 number, since 2×1051111042 = 22096688368197632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105111101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1040654 + ... + 1040754.

Almost surely, 2105111104 is an apocalyptic number.

105111104 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 105111104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125614176).

105111104 is an abundant number, since it is smaller than the sum of its proper divisors (146117248).

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

105111104 is an equidigital number, since it uses as much as digits as its factorization.

105111104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 105111104 is about 10252.3706526832. The cubic root of 105111104 is about 471.9357376842.

Adding to 105111104 its reverse (401111501), we get a palindrome (506222605).

The spelling of 105111104 in words is "one hundred five million, one hundred eleven thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 64 92 101 112 161 184 202 224 322 368 404 448 644 707 736 808 1288 1414 1472 1616 2323 2576 2828 3232 4646 5152 5656 6464 9292 10201 10304 11312 16261 18584 20402 22624 32522 37168 40804 45248 65044 71407 74336 81608 130088 142814 148672 163216 234623 260176 285628 326432 469246 520352 571256 652864 938492 1040704 1142512 1642361 1876984 2285024 3284722 3753968 4570048 6569444 7507936 13138888 15015872 26277776 52555552 105111104