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105052680 = 23335211461
BaseRepresentation
bin1100100001011…
…11101000001000
321022200020012000
412100233220020
5203343141210
614231351000
72413635015
oct620575010
9238606160
10105052680
11543326a7
122b222460
13189c2565
14dd4870c
159351ac0
hex642fa08

105052680 has 128 divisors (see below), whose sum is σ = 352598400. Its totient is φ = 27820800.

The previous prime is 105052679. The next prime is 105052709. The reversal of 105052680 is 86250501.

105052680 is a `hidden beast` number, since 10 + 50 + 526 + 80 = 666.

It is a super-2 number, since 2×1050526802 = 22072131150364800, 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 an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 227650 + ... + 228110.

It is an arithmetic number, because the mean of its divisors is an integer number (2754675).

Almost surely, 2105052680 is an apocalyptic number.

105052680 is a gapful number since it is divisible by the number (10) 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 105052680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176299200).

105052680 is an abundant number, since it is smaller than the sum of its proper divisors (247545720).

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

105052680 is a wasteful number, since it uses less digits than its factorization.

105052680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 105052680 is about 10249.5209644158. The cubic root of 105052680 is about 471.8482826561.

The spelling of 105052680 in words is "one hundred five million, fifty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 211 216 270 360 422 461 540 633 844 922 1055 1080 1266 1383 1688 1844 1899 2110 2305 2532 2766 3165 3688 3798 4149 4220 4610 5064 5532 5697 6330 6915 7596 8298 8440 9220 9495 11064 11394 12447 12660 13830 15192 16596 18440 18990 20745 22788 24894 25320 27660 28485 33192 37980 41490 45576 49788 55320 56970 62235 75960 82980 97271 99576 113940 124470 165960 194542 227880 248940 291813 389084 486355 497880 583626 778168 875439 972710 1167252 1459065 1750878 1945420 2334504 2626317 2918130 3501756 3890840 4377195 5252634 5836260 7003512 8754390 10505268 11672520 13131585 17508780 21010536 26263170 35017560 52526340 105052680