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13031001200 = 245272664847
BaseRepresentation
bin11000010001011010…
…10100110001110000
31020122011010110010002
430020231110301300
5203141414014300
65553015325132
7640630453100
oct141055246160
936564113102
1013031001200
11558772a088
1226380807a8
1312c89375c9
148b8919200
155140275d5
hex308b54c70

13031001200 has 90 divisors (see below), whose sum is σ = 36418378896. Its totient is φ = 4467765120.

The previous prime is 13031001169. The next prime is 13031001227. The reversal of 13031001200 is 210013031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 312824 + ... + 352023.

Almost surely, 213031001200 is an apocalyptic number.

13031001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031001200 is an abundant number, since it is smaller than the sum of its proper divisors (23387377696).

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

13031001200 is a wasteful number, since it uses less digits than its factorization.

13031001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664879 (or 664861 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 13031001200 its reverse (210013031), we get a palindrome (13241014231).

The spelling of 13031001200 in words is "thirteen billion, thirty-one million, one thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 49 50 56 70 80 98 100 112 140 175 196 200 245 280 350 392 400 490 560 700 784 980 1225 1400 1960 2450 2800 3920 4900 9800 19600 664847 1329694 2659388 3324235 4653929 5318776 6648470 9307858 10637552 13296940 16621175 18615716 23269645 26593880 32577503 33242350 37231432 46539290 53187760 65155006 66484700 74462864 93078580 116348225 130310012 132969400 162887515 186157160 232696450 260620024 265938800 325775030 372314320 465392900 521240048 651550060 814437575 930785800 1303100120 1628875150 1861571600 2606200240 3257750300 6515500600 13031001200