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1200203212230 = 2325114328193639
BaseRepresentation
bin10001011101110001101…
…011111010010111000110
311020201221020002100202100
4101131301223322113012
5124131004010242410
62315211000052530
7152466103656351
oct21356153722706
94221836070670
101200203212230
11423004473490
12174735764146
1389242728129
1442139505298
152134797b8c0
hex11771afa5c6

1200203212230 has 96 divisors (see below), whose sum is σ = 3483380609280. Its totient is φ = 284191871040.

The previous prime is 1200203212217. The next prime is 1200203212253. The reversal of 1200203212230 is 322123020021.

1200203212230 is a `hidden beast` number, since 1 + 20 + 0 + 203 + 212 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14054250 + ... + 14139389.

It is an arithmetic number, because the mean of its divisors is an integer number (36285214680).

Almost surely, 21200203212230 is an apocalyptic number.

1200203212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200203212230 is an abundant number, since it is smaller than the sum of its proper divisors (2283177397050).

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

1200203212230 is a wasteful number, since it uses less digits than its factorization.

1200203212230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28193706 (or 28193703 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1200203212230 its reverse (322123020021), we get a palindrome (1522326232251).

The spelling of 1200203212230 in words is "one trillion, two hundred billion, two hundred three million, two hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 43 45 55 66 86 90 99 110 129 165 198 215 258 330 387 430 473 495 645 774 946 990 1290 1419 1935 2365 2838 3870 4257 4730 7095 8514 14190 21285 42570 28193639 56387278 84580917 140968195 169161834 253742751 281936390 310130029 422904585 507485502 620260058 845809170 930390087 1212326477 1268713755 1550650145 1860780174 2424652954 2537427510 2791170261 3101300290 3636979431 4651950435 5582340522 6061632385 7273958862 9303900870 10910938293 12123264770 13335591247 13955851305 18184897155 21821876586 26671182494 27911702610 36369794310 40006773741 54554691465 66677956235 80013547482 109109382930 120020321223 133355912470 200033868705 240040642446 400067737410 600101606115 1200203212230