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201212012000 = 255371708493
BaseRepresentation
bin1011101101100100101…
…0111010010111100000
3201020100210220021101202
42323121022322113200
511244040233341000
6232234023420332
720352135611456
oct2733112722740
9636323807352
10201212012000
1178373a3180a
1232bb55b46a8
1315c8845ac3c
149a4b05a9d6
155379a83dd5
hex2ed92ba5e0

201212012000 has 96 divisors (see below), whose sum is σ = 501341690304. Its totient is φ = 79351104000.

The previous prime is 201212011997. The next prime is 201212012041. The reversal of 201212012000 is 210212102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70247 + ... + 638246.

It is an arithmetic number, because the mean of its divisors is an integer number (5222309274).

Almost surely, 2201212012000 is an apocalyptic number.

201212012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212012000 is an abundant number, since it is smaller than the sum of its proper divisors (300129678304).

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

201212012000 is an equidigital number, since it uses as much as digits as its factorization.

201212012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708589 (or 708571 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201212012000 its reverse (210212102), we get a palindrome (201422224102).

The spelling of 201212012000 in words is "two hundred one billion, two hundred twelve million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 71 80 100 125 142 160 200 250 284 355 400 500 568 710 800 1000 1136 1420 1775 2000 2272 2840 3550 4000 5680 7100 8875 11360 14200 17750 28400 35500 56800 71000 142000 284000 708493 1416986 2833972 3542465 5667944 7084930 11335888 14169860 17712325 22671776 28339720 35424650 50303003 56679440 70849300 88561625 100606006 113358880 141698600 177123250 201212012 251515015 283397200 354246500 402424024 503030030 566794400 708493000 804848048 1006060060 1257575075 1416986000 1609696096 2012120120 2515150150 2833972000 4024240240 5030300300 6287875375 8048480480 10060600600 12575750750 20121201200 25151501500 40242402400 50303003000 100606006000 201212012000