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211315200 = 293525503
BaseRepresentation
bin11001001100001…
…10101000000000
3112201121220221220
430212012220000
5413044041300
632545115040
75144102205
oct1446065000
9481556856
10211315200
11a9311268
125a928a80
1334a196a5
14200c9cac
1513841da0
hexc986a00

211315200 has 120 divisors (see below), whose sum is σ = 698193408. Its totient is φ = 56340480.

The previous prime is 211315193. The next prime is 211315213. The reversal of 211315200 is 2513112.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×2113152002 = 89308227502080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211315200.

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, 35649 + ... + 41151.

Almost surely, 2211315200 is an apocalyptic number.

211315200 is a gapful number since it is divisible by the number (20) 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 211315200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349096704).

211315200 is an abundant number, since it is smaller than the sum of its proper divisors (486878208).

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

211315200 is an equidigital number, since it uses as much as digits as its factorization.

211315200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534 (or 5513 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 211315200 is about 14536.6846288966. The cubic root of 211315200 is about 595.6304782683.

Adding to 211315200 its reverse (2513112), we get a palindrome (213828312).

The spelling of 211315200 in words is "two hundred eleven million, three hundred fifteen thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 240 256 300 320 384 400 480 512 600 640 768 800 960 1200 1280 1536 1600 1920 2400 2560 3200 3840 4800 5503 6400 7680 9600 11006 12800 16509 19200 22012 27515 33018 38400 44024 55030 66036 82545 88048 110060 132072 137575 165090 176096 220120 264144 275150 330180 352192 412725 440240 528288 550300 660360 704384 825450 880480 1056576 1100600 1320720 1408768 1650900 1760960 2113152 2201200 2641440 2817536 3301800 3521920 4226304 4402400 5282880 6603600 7043840 8452608 8804800 10565760 13207200 14087680 17609600 21131520 26414400 35219200 42263040 52828800 70438400 105657600 211315200