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252144200 = 235272112339
BaseRepresentation
bin11110000011101…
…10101001001000
3122120110020211002
433001312221020
51004022103300
641004154132
76151122200
oct1701665110
9576406732
10252144200
1111a368740
1270538948
1340313669
14256b7400
15172095d5
hexf076a48

252144200 has 144 divisors (see below), whose sum is σ = 744260400. Its totient is φ = 78556800.

The previous prime is 252144199. The next prime is 252144247. The reversal of 252144200 is 2441252.

It is a happy number.

252144200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 35 ways as a sum of consecutive naturals, for example, 106631 + ... + 108969.

It is an arithmetic number, because the mean of its divisors is an integer number (5168475).

Almost surely, 2252144200 is an apocalyptic number.

252144200 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 252144200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372130200).

252144200 is an abundant number, since it is smaller than the sum of its proper divisors (492116200).

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

252144200 is a wasteful number, since it uses less digits than its factorization.

252144200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 252144200 is about 15879.0490899172. The cubic root of 252144200 is about 631.7564155036.

Adding to 252144200 its reverse (2441252), we get a palindrome (254585452).

The spelling of 252144200 in words is "two hundred fifty-two million, one hundred forty-four thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 11 14 20 22 25 28 35 40 44 49 50 55 56 70 77 88 98 100 110 140 154 175 196 200 220 245 275 280 308 350 385 392 440 490 539 550 616 700 770 980 1078 1100 1225 1400 1540 1925 1960 2156 2200 2339 2450 2695 3080 3850 4312 4678 4900 5390 7700 9356 9800 10780 11695 13475 15400 16373 18712 21560 23390 25729 26950 32746 46780 51458 53900 58475 65492 81865 93560 102916 107800 114611 116950 128645 130984 163730 180103 205832 229222 233900 257290 327460 360206 409325 458444 467800 514580 573055 643225 654920 720412 818650 900515 916888 1029160 1146110 1260721 1286450 1440824 1637300 1801030 2292220 2521442 2572900 2865275 3274600 3602060 4502575 4584440 5042884 5145800 5730550 6303605 7204120 9005150 10085768 11461100 12607210 18010300 22922200 25214420 31518025 36020600 50428840 63036050 126072100 252144200