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105231200 = 2552199661
BaseRepresentation
bin1100100010110…
…11001101100000
321100000022001212
412101123031200
5203414344300
614235245252
72415310334
oct621331540
9240008055
10105231200
1154444838
122b2a9828
1318a558a9
14dd937c4
159389935
hex645b360

105231200 has 72 divisors (see below), whose sum is σ = 258577200. Its totient is φ = 41817600.

The previous prime is 105231199. The next prime is 105231211. The reversal of 105231200 is 2132501.

It is a happy number.

It is a super-2 number, since 2×1052312002 = 22147210906880000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158870 + ... + 159530.

It is an arithmetic number, because the mean of its divisors is an integer number (3591350).

Almost surely, 2105231200 is an apocalyptic number.

105231200 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 105231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129288600).

105231200 is an abundant number, since it is smaller than the sum of its proper divisors (153346000).

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

105231200 is a wasteful number, since it uses less digits than its factorization.

105231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 105231200 is about 10258.2259674858. The cubic root of 105231200 is about 472.1154079568.

Adding to 105231200 its reverse (2132501), we get a palindrome (107363701).

The spelling of 105231200 in words is "one hundred five million, two hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 199 200 398 400 661 796 800 995 1322 1592 1990 2644 3184 3305 3980 4975 5288 6368 6610 7960 9950 10576 13220 15920 16525 19900 21152 26440 31840 33050 39800 52880 66100 79600 105760 131539 132200 159200 263078 264400 526156 528800 657695 1052312 1315390 2104624 2630780 3288475 4209248 5261560 6576950 10523120 13153900 21046240 26307800 52615600 105231200