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131100200 = 23527118513
BaseRepresentation
bin1111101000001…
…10111000101000
3100010200120122222
413310012320220
5232030201300
621001533212
73151222220
oct764067050
9303616588
10131100200
1168003580
1237aa4208
13212124aa
14135a9080
15b799785
hex7d06e28

131100200 has 96 divisors (see below), whose sum is σ = 380064960. Its totient is φ = 40857600.

The previous prime is 131100199. The next prime is 131100223. The reversal of 131100200 is 2001131.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11144 + ... + 19656.

It is an arithmetic number, because the mean of its divisors is an integer number (3959010).

Almost surely, 2131100200 is an apocalyptic number.

131100200 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 131100200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190032480).

131100200 is an abundant number, since it is smaller than the sum of its proper divisors (248964760).

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

131100200 is a wasteful number, since it uses less digits than its factorization.

131100200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547 (or 8538 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 131100200 is about 11449.8995628783. The cubic root of 131100200 is about 508.0047636315.

Adding to 131100200 its reverse (2001131), we get a palindrome (133101331).

The spelling of 131100200 in words is "one hundred thirty-one million, one hundred thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 25 28 35 40 44 50 55 56 70 77 88 100 110 140 154 175 200 220 275 280 308 350 385 440 550 616 700 770 1100 1400 1540 1925 2200 3080 3850 7700 8513 15400 17026 34052 42565 59591 68104 85130 93643 119182 170260 187286 212825 238364 297955 340520 374572 425650 468215 476728 595910 655501 749144 851300 936430 1191820 1311002 1489775 1702600 1872860 2341075 2383640 2622004 2979550 3277505 3745720 4682150 5244008 5959100 6555010 9364300 11918200 13110020 16387525 18728600 26220040 32775050 65550100 131100200