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53285850 = 2345259223
BaseRepresentation
bin1100101101000…
…1001111011010
310201021012110000
43023101033122
5102120121400
65142033430
71214631222
oct313211732
9121235400
1053285850
11280954a2
1215a18876
13b068bb7
147111082
154a28600
hex32d13da

53285850 has 120 divisors (see below), whose sum is σ = 151240320. Its totient is φ = 13906080.

The previous prime is 53285833. The next prime is 53285851. The reversal of 53285850 is 5858235.

53285850 is a `hidden beast` number, since 53 + 28 + 585 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (53285851) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 238839 + ... + 239061.

It is an arithmetic number, because the mean of its divisors is an integer number (1260336).

Almost surely, 253285850 is an apocalyptic number.

53285850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53285850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75620160).

53285850 is an abundant number, since it is smaller than the sum of its proper divisors (97954470).

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

53285850 is a wasteful number, since it uses less digits than its factorization.

53285850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 53285850 is about 7299.7157478905. The cubic root of 53285850 is about 376.3026695655.

The spelling of 53285850 in words is "fifty-three million, two hundred eighty-five thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 59 75 81 90 118 135 150 162 177 223 225 270 295 354 405 446 450 531 590 669 675 810 885 1062 1115 1338 1350 1475 1593 1770 2007 2025 2230 2655 2950 3186 3345 4014 4050 4425 4779 5310 5575 6021 6690 7965 8850 9558 10035 11150 12042 13157 13275 15930 16725 18063 20070 23895 26314 26550 30105 33450 36126 39471 39825 47790 50175 60210 65785 78942 79650 90315 100350 118413 119475 131570 150525 180630 197355 236826 238950 301050 328925 355239 394710 451575 592065 657850 710478 903150 986775 1065717 1184130 1776195 1973550 2131434 2960325 3552390 5328585 5920650 8880975 10657170 17761950 26642925 53285850