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55831200 = 2535243541
BaseRepresentation
bin1101010011111…
…0101010100000
310220001112000020
43110332222200
5103243044300
65312353440
71245362115
oct324765240
9126045006
1055831200
1129573897
1216845880
13b74a619
1475b490c
154d7c8a0
hex353eaa0

55831200 has 144 divisors (see below), whose sum is σ = 186300576. Its totient is φ = 14515200.

The previous prime is 55831183. The next prime is 55831229. The reversal of 55831200 is 213855.

55831200 is digitally balanced in base 2, 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 (24).

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 23 ways as a sum of consecutive naturals, for example, 102930 + ... + 103470.

It is an arithmetic number, because the mean of its divisors is an integer number (1293754).

Almost surely, 255831200 is an apocalyptic number.

55831200 is a gapful number since it is divisible by the number (50) 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 55831200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93150288).

55831200 is an abundant number, since it is smaller than the sum of its proper divisors (130469376).

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

55831200 is a wasteful number, since it uses less digits than its factorization.

55831200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 55831200 is about 7472.0278372072. The cubic root of 55831200 is about 382.2014415920.

The spelling of 55831200 in words is "fifty-five million, eight hundred thirty-one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 43 48 50 60 75 80 86 96 100 120 129 150 160 172 200 215 240 258 300 344 400 430 480 516 541 600 645 688 800 860 1032 1075 1082 1200 1290 1376 1623 1720 2064 2150 2164 2400 2580 2705 3225 3246 3440 4128 4300 4328 5160 5410 6450 6492 6880 8115 8600 8656 10320 10820 12900 12984 13525 16230 17200 17312 20640 21640 23263 25800 25968 27050 32460 34400 40575 43280 46526 51600 51936 54100 64920 69789 81150 86560 93052 103200 108200 116315 129840 139578 162300 186104 216400 232630 259680 279156 324600 348945 372208 432800 465260 558312 581575 649200 697890 744416 930520 1116624 1163150 1298400 1395780 1744725 1861040 2233248 2326300 2791560 3489450 3722080 4652600 5583120 6978900 9305200 11166240 13957800 18610400 27915600 55831200